Tipton blast: 'There were nails all over the place'
12 July 2013 Last updated at 17:31 BST
An eye witness who was close to an explosion near a mosque in Tipton has said the blast could have been a nail bomb.
Shopkeeper Sadarat Khan told the BBC that he found nails all over the street and in nearby gardens.
There are no reports of any injuries, West Midlands Police said.