Three Royal Marines have been injured in an attack on a convoy in southern Afghanistan, the Ministry of Defence has confirmed.
The marines, all from the 45 Commando unit based in Arbroath, were injured in a suspected suicide bomb attack in Kandahar city on Sunday.
Officials said at least three Afghan civilians were killed in the blast and a number of others were injured.
One of the marines is said to be "seriously" hurt.
The suicide bombers had attempted to ram the convoy of British vehicles, the MoD said.
Officials said the marines had received first aid at the scene before being evacuated by UK helicopter and are receiving medical treatment.
A statement said: "One is seriously ill, while the others are in a stable condition. Their next of kin have all been informed."
UK Taskforce spokesman Lt Col Andy Price said the thoughts of fellow troops were with the injured marines and their families.
He added: "This was a typically indiscriminate attack from the Taleban, who didn't care if they killed or injured innocent Afghans around our forces."
The Nato-led International Security Assistance Force (ISAF) said claims of shots being fired by the force's soldiers are being investigated.
A statement said: "During the aftermath of the incident it has been reported that warning shots were fired by ISAF soldiers and that a number of civilian casualties were caused.
"These claims are now being investigated."
An MoD spokesman said British vehicles transported the casualties from the scene to a safe location where a helicopter could land after the attack.
"As they moved from the area of the attack, several civilian vehicles began following them, including one which weaved in front of them in an attempt to block their progress," he said.
"Hand signals, flares and warning shots were used to keep the vehicles back so the British vehicles could leave the scene with the casualties.
"Despite this, some continued to approach and further shots had to be fired to disable the vehicles."