The first of four daily Ilyushin-76 cargo planes is scheduled to land on Friday evening in Erzurum carrying 37 metric tons of relief items from its emergency stockpile in Dubai, it said. Trucks will take the supplies to the city of Van for distribution to victims of Sunday’s quake.

“Each flight will be carrying approximately 500 tents and 10,000 blankets,” Adrian Edwards, spokesman for the UN High Commissioner for Refugees (UNHCR), told a news briefing. “The shelter needs are great.”

Some survivors have accused the government of a slow response in getting aid to the stricken region and have accused profiteers of hoarding tents and reselling them.

Prime Minister Tayyip Erdogan’s government started out by saying Turkey could handle the disaster alone, and Ankara accepted the many offers of help only two days after the quake.

Rescue workers pulled a 13-year-old boy alive out of the rubble of an apartment block on Friday, five days after the earthquake that has killed at least 570 people.