LAGOS, Nigeria (AP) — Security was high in Nigeria's capital, Abuja, Tuesday, a day after several people were killed in clashes between police and the country's main Shia group.

A police officer and a reporter for the Channels television network were among those killed in the clashes in the capital, Abuja, on Monday, police said.

At least 11 members of the Shia group were killed by police gunfire, said Ibrahim Musa, spokesman for the Islamic Movement of Nigeria.

Police spokesman Frank Mba blamed the Shias for the deaths. He said "heavily armed protesters defying all sense of decency violently attacked innocent citizens and police personnel on duty." He said an additional two police officers were injured.