A powerful explosion shook a church in a densely populated part of the Nigerian capital Abuja on Sunday, witnesses said.

A witness on a local radio station calling himself Paul said he was inside St Theresa's Church in the Madala district when a bomb went off in the middle of the church.

Another witness, Rose Adoga, who lives nearby told Reuters by telephone there was a huge explosion from the direction of the church. She added that the blast destroyed the windows of my home. There were no further details immediately available.

(Reporting by Felix Onuah; Writing by Tim Cocks, editing by Peter Millership)