The 15th soldier to die within three days in Afghanistan is expected to be named by military officials.
A grieving family has paid an emotional tribute to "a wonderful son" killed by a suicide bomb in Afghanistan.
One member of the Argyll and Sutherland Highlanders, 5th Battalion Royal Regiment of Scotland was killed by a suicide bomb in Kabul on Monday.
Private Craig O'Donnell, 24, from Clydebank, Dunbartonshire was killed by a suicide bomb in Kabul on Monday.
Another soldier was seriously injured in the attack on the Nato military convoy in the Afghan capital.
His girlfriend Jessica is carrying his child and the baby is due at Christmas. His parents said: "At this time words cannot express the depth of our grief."
On Saturday, 14 RAF Kinloss based troops died when their Nimrod crashed near Kandahar in Afghanistan.
Private O'Donnell was serving with the Argyll and Sutherland Highlanders, 5th Battalion Royal Regiment of Scotland.
An RAF inquiry team, which has begun its investigation into the weekend crash, confirmed that the crew reported a fire on board the aircraft.
Active service
Air Chief Marshal Sir Glenn Torpy said the Nimrod had just completed a routine air-to-air refuelling when the alarm was raised.
The Nimrod fatalities are the biggest single loss of life suffered by British forces in the war on terror.
Monday's death in Afghanistan has brought to 37 the number of UK personnel killed since operations began there in 2001.
The serviceman injured in the suicide attack has been taken to a military medical facility for treatment.
The Argylls have been on active service in Afghanistan for the past month.
