Wolverhampton mosque bomb confirmed
19 July 2013 Last updated at 22:48 BST
Counter-terrorism police have confirmed there was an explosion near Wolverhampton Central Mosque three weeks ago.
They said evidence of the bomb was only discovered on Thursday night.
It's the third explosive device targeting mosques in the West Midlands in the space of a month.
Two men have been arrested in connection with the attacks.
Phil Mackie reports.