April 13 (UPI) -- More than 50 people were killed in an air strike at a Nigerian market by the Nigerian military, and some say the death toll is much higher.

The market was in northeast Nigeria along the border between Borno and Yobe states. The military was hunting Islamist militants in the area, which it said was an abandoned village in Borno. It said militants had moved into the village.

But local authorities and human rights groups said the village, Jilli, hosts a popular weekly market that brings hundreds to the area. They also denied that the town was abandoned.

They said the number of people killed, mostly civilians, was much higher than the government has reported.

"I spoke to the hospital authorities, and they confirmed that at least 100 have been killed," said Isa Sanusi, executive director of Amnesty International in Nigeria.