At least 12 migrants were killed--including Afghans, Pakistanis and Bangladeshis--and 26 others were wounded in a bush crash in eastern Turkey in the early hours of Sunday morning, Reuters reported. 

Two local sources told Reuters that the crash occurred in Van province's Muradiye district near the Turkish border with Iran, adding that that the vehicle caught fire after tumbling into a ditch. 

The identities of those killed in the accident were not immediately clear, both sources told Reuters. 

The owner of the bus has been detained, the source added. 

Turkey has been a key transit point for migrants aiming to cross into Europe.  

Migrants, mostly from Iran, Afghanistan, and Pakistan, regularly cross the Iranian border into Turkey on foot before being ferried west to cities such as Istanbul and Ankara, according to the report.