Foreign Secretary Dominic Raab said:
Given the body of information that UIA Flight 752 was shot down by an Iranian Surface to Air Missile, and the heightened tensions, we are now advising British nationals not to travel to Iran. We also recommend against taking a flight to, from and within Iran.
We urgently need a full and transparent investigation to establish what caused the crash.
Our thoughts are with the families of the victims, including the four British nationals who lost their lives.