The death toll from eastern Turkey's devastating earthquake rose to 596 on Sunday while bulldozers were replacing sniffer dogs as search efforts wound down.

More than 4,150 people were injured in the 7.2 magnitude quake that shook the eastern Van province near the Iranian border a week ago, the prime ministry's emergency unit said in a statement on its website.

Search and rescue work ended in Van's city centre, but emergency crews went on working at two locations in the town of Ercis, which was hardest hit by the quake, the unit said.