The dressed gunman pretended to be injured because he knew that the soldiers would come to his aide and try to help him.
According to Yorkshire Post
, The Ministry of Defence (MoD) said that there is an investigation into the circumstances surrounding the soldiers' deaths that occurred in south of Nahr-e Saraj at a checkpoint.
According to BBC
, as of now it is not known whether or not the man was a real Afghan police officer. When the soldiers approached the man, he shot and killed them. The man ended up dying too due to returned fire.
According to Daily Mail
, Another solider died on Friday, Lance Corporal Groom. Groom died when an improvised explosive device was hit by his vehicle. The MoD released a statement and said that the deaths were not related to the attack that occurred at Camp Bastion, where two US Marines were killed.
The attackers that attacked Camp Bastion had automatic rifles as well as suicide vests and rocket-propelled grenade launchers. Six Harrier jets were destroyed in the attack as well as three refuelling stations.
The Taliban ended claiming responsibility for that attack. They claimed that they were avenging Muslims who felt insulted over an amateurish film that poked fun at the prophet Muhammad.