Several people are feared to have been killed and injured in Nigeria after a suspected suicide bomber carried out an attack on a mosque in Borno state. Eyewitnesses said the blast happened during evening prayers. One report suggests seven people were killed, but there has been no official confirmation of any casualties.

Three people - including two police officers - have been killed in an explosion in Moscow, Russian authorities have said.

Three people, including two police officers, were killed in an explosion in Moscow on Wednesday, Russian investigators said, just days after a car bomb killed a high-ranking general not far away.

On Wednesday, two traffic police officers were approaching a suspicious individual when a device detonated, Russia’s Investigative Committee spokesperson Svetlana Petrenko said in a statement.

The blast at the nursing home in Bristol Township outside Philadelphia was caused by a suspected gas leak.

Multiple people are reported to be injured after an explosion and fire at a nursing home in Bristol, Pennsylvania, officials said.

There were initial reports that people were trapped, Ruth Miller, Pennsylvania Emergency Management Agency spokesperson, told the Associated Press .