At least 60 people were killed on Tuesday in double suicide bombings in northeast Nigeria, residents revealed. The attacks targeted a mosque and a market in Mubi and blame has been pointed to the Boko Haram extremist group. A resident, Muhammad Hamidu, said: "I took part in the burial of 68 people. More bodies were being brought by families of the victims." Another, Abdullahi Labaran, said: "We left 73 freshly dug graves where each victim was buried." The blasts happened at about 1:20 pm (1220 GMT) in Mubi, a city some 200 kilometers (125 miles) from the Adamawa state capital, Yola. Mubi has been repeatedly targeted in attacks blamed on Boko Haram since it was briefly overrun by the extremists in late 2014. Boko Haram’s insurgency in Nigeria has left at least 20,000 dead since 2009. Nigerias government and military have long maintained that the ISIS group affiliate is a spent force and on the verge of defeat. But there has been no let-up in attacks in the northeast, particularly in Borno state, adjacent to Adamawa, which has been the epicenter of the violence. Last Thursday, at least four people were killed when suicide bombers and fighters attempted to storm the Borno state capital, Maiduguri, raising fresh questions about security. Nigerian President Muhammadu Buhari has been in the United States this week and met his US counterpart Donald Trump, who pledged more support in the fight against Boko Haram.