Iran's Revolutionary Guards said a fire broke out on Sunday in one of their research facilities injuring three employees.
"The fire broke out in the afternoon in one of the Guards' research centres west of Tehran, injuring three members of staff," a statement on the forces Sepahnews website said.
The injured were taken to hospital, the statement said, adding that the blaze was put out by firefighters who work at the centre.
It did not say, however, what caused the blaze.
The Guards are the ideological arm of Iran's military.
