Scores dead after Boko Haram bomb attack in Nigeria

A bomb blast hit a busy market in Nigeria's northeastern city of Maiduguri on Tuesday, killing as many as 50 people, according to eyewitnesses. 

Boko Haram attacked the city early on Tuesday morning, according to residents awakened by booming explosions, heavy gunfire and the screech of a jet fighter.

A man blew himself up at Gamboru cattle market, according to witnesses who spoke on condition of anonymity. One said he counted at least 20 bodies.

More than 30 people had already died in attacks over the weekend.

President Muhammadu Buhari announced on Friday that he is moving the military headquarters of the war from Abuja, the capital in central Nigeria, to Maiduguri.

The biggest city in northeast Nigeria also is the birthplace of Boko Haram.

On 30 May, a major blast killed at least 30 people as 29 heads of state and leading diplomats were in the capital Abuja for the innauguration of the country's new president.