The Real IRA has claimed responsibility for planting a bomb inside a British army base at Ballykelly in Co Derry.

It was discovered this morning attached to a wheelie bin in the married quarters of the camp. It did not explode. Army bomb experts later carried out a controlled explosion.

The Real IRA claimed it broke through fencing and left the explosives nearfamily quarters at Shackleton barracks.

An investigation has been launched to establish how the device was transported into the camp.

Even though the device was defused, security has been tightened amid fears of a new offensive by the dissident republican terrorists who carried out the Omagh atrocity.

Police described it as a sophisticated anti-personnel device similar to the explosives used by the Real IRA to murder construction worker David Caldwell at a nearby Territorial Army camp in August 2002.