Explosions were reported Wednesday at the Lavan refinery in southern Iran, hours after the announcement of a two-week ceasefire between Tehran and Washington, according to Iranian media.
Mehr News Agency said several explosions occurred at the refinery facility on Lavan Island in the Gulf.
The cause of the explosions remains unknown, the source said.
No information was given about damage or injuries.
US President Donald Trump announced a two-week ceasefire with Iran on Tuesday, saying Tehran presented a "workable" 10-point proposal for negotiations.
The announcement came less than two hours before the expiration of a deadline Trump had repeatedly extended for Iran to reopen the Strait of Hormuz and accept an agreement or face "the destruction of an entire civilization."
