Two Eastern European men have been arrested in connection with the explosion near Aisha Mosque in Walsall last month.
The 25-year-old and 22-year-old were arrested just before 3pm today.
Police are searching an area of Talbot Way in Small Heath and as a precaution homes have been evacuated.
More top news
Abuse of the elderly is a 'growing concern', according to an age charity which has launched a leaflet to help people recognise the signs.
The following blog was written by William Davis, a former bulimia sufferer from Kidderminster.
Former Police Officer William Davis would force himself to vomit three or four times a day whilst battling bulimia.