TEHRAN -- Eleven people were killed and four others injured during two separate car accidents which occurred in northwest and west Iran on Sunday.

In the first accident which happened on the road between Gonabad and Torbat-e Heydarieh in the northwestern Khorasan Province, five people were killed and four others injured after a truck and a car collided.

Two of two injured are in a critical situation, hospital officials in the provincial capital city of Mashhad said.

The second accident happened on the road between the cities of Lordegan and Borujen in the Kohkiloyeh-Charmahal Bakhtiari Province, leading to the death of six people.