A woman aged about 50 was seen acting suspiciously with a large bag before the blast, which caused minor damage.
The Sun (2009)
Police swooped after a neighbour alerted them to two men acting suspiciously in a car nearby.
The Sun (2011)
Police were alerted to men acting suspiciously around a parked lorry.
The Sun (2015)
They were spotted acting suspiciously as they carried a box from a car outside the courier firm.
The Sun (2017)