"Based on the request made by the Iranian authorities through the Foreign Ministry, an Akinci UAV and a Cougar-type helicopter with night vision capability were deployed to participate in the search and rescue activities of the crashed helicopter of the President of Iran and his delegation. Was handed over, the Defense Ministry said in a statement on Sunday evening.

The drone has been dispatched, while the helicopter is on standby, ready to respond in favorable weather conditions, the ministry was quoted as saying by Xinhua news agency.

The Turkish Disaster Management Agency said Iran has requested a night vision search and rescue helicopter from Turkey following the helicopter crash.

Turkey is also sending 32 search and rescue climbers and six vehicles to aid rescue operations in Iran, the country's disaster and emergency management authority said in a statement.

In addition, mountaineering search and rescue teams, consisting of 15 people each from Ankara, Diyarbakir and Konya provinces, have been kept ready to be dispatched, the statement said.

Turkish President Recep Tayyip Erdogan said on social media platform XO on Sunday that Turkey is closely monitoring the incident in full contact and coordination with Iranian authorities and is ready to provide all necessary assistance.

The helicopter crash site is near Türkiye's eastern Van province.

A helicopter carrying Iranian President Raisi crashed on Sunday and made a hard landing in eastern Azerbaijan, state-run IRIB TV reported.

The probable location of the incident has been determined to be Varzakan, about 670 km from the capital Tehran, and rescue teams have been dispatched to the scene, the report said.