Explosion debris found at mosque
19 July 2013 Last updated at 13:49 BST
Counter terror police in the West Midlands have found evidence of an explosion near a mosque.
A blast was reported near Wolverhampton's Central Mosque on June 28, but the exact location was not known until now.
Two Ukrainian men are being questioned.
Assistant Chief Constable Marcus Beale, from West Midlands Police, appealed for anyone with information to come forward while Iftikhar Ahmed, from Wolverhampton Central Mosque, said it was business as usual for Friday prayers.