Three people - two women and a man - carrying homemade explosives blew themselves up at a centre where people had gathered to watch television, the country's State Emergency Management Agency (SEMA) was cited as saying by Efe news.
Usman Kachala, SEMA's Director of Search, Rescue and Operations, who disclosed this to newsmen when he visited the scene of the attack on Monday, said the incident occurred around 8pm on Sunday.More news: Stuntman, Lowered Into Ganga Tied Up In Steel Chains And Rope, Missing
Eight worshippers were killed when a suicide bomber attacked a mosque in the town last July.
"Though 17 persons, including one mobile policeman are dead while the injured may be as high as 30 civilians". He added that the hospital in Konduga did not have enough facilities to handle the situation.
"When we arrived Konduga early this morning, the military prevented us from gaining access to the community to assist the victims", he said.More news: Bill Cosby, 'America's Dad,' sends Father's Day message from prison
"They told us they were given order from above not to open the road until 9am." .
Authorities in northeastern Nigeria say at least 30 people have been killed by a suicide bomber.More news: Amanda Knox presence at law panel in Milan 'inappropriate,' says lawyer