Militants attack another city in Nigeria - residents
witness, Mike David, said the militants were shouting "Allahu Akbar" (God is greatest) and shooting at random.
Boko Haram is a Sunni jihadist group that has waged a 5-year insurgency with the aim of establishing an Islamic caliphate in the country's north.
The group launched several major attacks in the last week. On Friday, at least 100 people were killed and 135 wounded after a coordinated attack in the central mosque of the country's second biggest city, Kano.
President Goodluck Jonathan has asked the national assembly to extend the state of emergency, which expired on Nov. 20, but no decision has yet been reached.
Yobe is one of three northeastern states under emergency rule along with Borno and Adamawa.
