Speaking at a meeting of the ruling Justice and Development Party (AKP) in Istanbul, Erdogan said "we might lose one helicopter, but they will pay a heavier price".
This news is confirmed by a spokesman for the Kurdish militia, Mustafa Bali.
A helicopter is seen firing two rockets in the area as plumes of smoke from the crash rise over the trees.
The Afrin invasion, launched on 20 January, aims to the prevent the YPG from establishing a statelet on Turkey's borders, which they fear could become a base for PKK attacks in Turkey.
"We don't have exact evidence or documents to determine that it went down with any outside interference", Binali Yildirim told reporters in the western province of Mugla.
YPG is regarded by Turkey as an extension of the Kurdistan Workers' Party (PKK), which has fought a three-decade armed conflict in Turkey and is regarded as a terrorist group by the United States and the European Union.
The Turkish military is making slow gains almost three weeks into the operation it calls "Olive Branch". Nevertheless, its strategic ally, the YPG, must at times make deals with Assad for its survival.
Oxfam vows shake-up after Haiti sex abuse
Oxfam has growing faced criticism over the way it handled the sexual misconduct claims against some staff in Haiti in 2011. She added: "If the moral leadership at the top of the organisation isn't there, then we cannot have you as a partner".
Also Friday, Save the Children said tens of thousands of children are in immediate danger in the besieged eastern suburbs of the capital of Damascus, also known as eastern Ghouta, which has been under intense shelling and airstrikes that left more than 200 dead in the past five days. UN Human Rights Office staff have received reports - including video footage - suggesting that in one instance, on 4 February, toxic agents may have been released following airstrikes on a residential area of eastern Saraqab city, although there were no reported deaths during this attack.
At least two million people live in Idlib, the largest area controlled by the opposition.
The battle lines are getting clearer in Syria and Assad is firmly in the saddle after a ferocious campaign by Russian Federation.
Both Idlib and eastern Ghouta are part of Russia-negotiated de-escalation areas, which are meant to freeze the lines of conflict and allow in humanitarian aid.
"After seven years of paralysis in the Security Council, the situation in Syria is crying out to be referred to the International Criminal Court, as well as for a much more concerted effort by states to bring peace", the statement said.
"The conduct and management of this war has been utterly shameful from the outset, and the failure to end it marks an epic failure of global diplomacy", said Mr Al Hussein.
An NTSB report issued in 2004 blamed the pilot's decision to descend too fast and too close to the scenic Grand Wash Cliffs. On its website, Papillon Airways calls itself as "oldest Grand Canyon helicopter sightseeing company".
Reich, 56, spent the past two seasons working in Philadelphia alongside Carson Wentz on coach Doug Pederson's staff. According to the NFL Network, the Colts are hoping Reich can bring out the best in quarterback Andrew Luck .
North and South Korea are technically still at war after their 1950-53 conflict ended in a truce rather than a peace treaty. Kim Yo Jong, the sister of North Korea's leader Kim Jong Un, arrives for a banquet in Seoul, South Korea February 11, 2018.
House Speaker Paul Ryan , R-Wis., urged Congress to avoid a "second needless shutdown in a matter of weeks - entirely needless". Federal funding for government services expired at midnight local time when the Senate missed a voting deadline.
He added that it reminds people there are dozens of people working in the White House without full security clearance. Porter resigned from his post at the White House on Wednesday amid abuse allegations from two ex-wives.
But the Nobel laureate has refused to change tack and is accused by critics of adopting a siege mentality. The news agency says they were arrested because of their investigation and called for their release.
DAYTONA BEACH, Fla. (AP) - Hendrick Motorsports rookie William Byron has posted the fastest lap in practice for the Daytona 500. The Homestead race, Patrick said, represented her end of the road as far as the grand passion of the moment.
Fans couldn't contain their excitement, with many begging the former girl group to reveal whether they are reuniting or not. Sadly, we'll just have to make do with their social media updates! "The girls aren't going on tour", yesterday.
Danny Ings has hailed his return to first-team action under manager Jurgen Klopp as "a massive relief". Liverpool have climbed back into third in the Premier League table on Sunday evening.
Price increase at Disney World, Disneyland
However, Sunday's move was widely expected as the park prepares for the 2019 opening of its much-anticipated "Star Wars" land. At Disneyland, the regular price of admission at the Anaheim, California, park will rise to $117, which is a $7 change.
No survivors in Russian plane crash
Russia's emergencies ministry has confirmed the crash to local to media, although an official statement has not yet been released. Saratov Airlines mainly operates domestic flights in Russian Federation , with some services flying to Armenia and Georgia.
Millennium man Gerard makes history with Olympic first
Canadian athletes came close , but failed to reach the podium on the first day medals were handed out in South Korea. Gerard's second run earned just a 57.11, but his finals status was all but confirmed after the first run.
OxyContin maker cuts sales staff, won't hawk drug to docs
Purdue Pharma pleaded guilty in 2007 to felony charges for false marketing of OxyContin and paid $635 million as a result. It later acknowledged that its promotions exaggerated the safety of the drug and minimized its risk for addiction.
Egyptian army kills 16 militants in Sinai operation
Schools in North Sinai have been closed until further notice starting Saturday as the army and police continue operations. This follows after the President of Egypt Abdul-Fattah Al-Sisi three-month period to suppress the Islamist insurgency.
Heavy Pakistan shelling along LoC in Rajouri district
Besides, Pakistani troops also launched mortar shells in Khadi Karmara and Chakan Da Bagh forward areas in Poonch on Saturday. A Defence spokesperson said the Indian Army was retaliating strongly and effectively to the Pakistani firing and shelling.
Study finds drowsy driving is leading to more accidents
In the study - 29 percent of those surveyed admitted to having trouble keeping their eyes open while driving in the past month. According to the AAA Foundation for Traffic Safety, nine and a half percent of all crashes are caused by drowsy driving.
Turkish military says another soldier killed in Syria
Last Saturday, seven Turkish troops died in the worst single-day loss of the operation so far, with five killed in a tank attack. She called for an immediate end to the fighting, adding that the siege "means there is nowhere for them to escape".