Residents in Tehran and elsewhere say the attacks come at all hours and rock the ground.
The South Pars gas field, hit by airstrikes on Wednesday, is central to the energy supply of Iran, which was already suffering blackouts before the war.
The attacks could worsen the severe electricity shortages that Iranians already face.
As the war has stretched into its third week, the Iranian government has blocked internet access for most of its 92 million citizens.
As the war has stretched into its third week, the Iranian government has blocked internet access for most of its 92 million citizens.
On Wednesday, the director of national intelligence and C.I.A. director contradicted one of the justifications the Trump administration had given for its attacks on Iran.
Near the center of Beirut, one image captures the aftermath of an Israeli strike.
The case indicates that more than two weeks into the war, Iran continues its prosecution of foreigners. Sweden said its citizen did not get a fair trial.
The strikes appeared to be some of the most significant attacks on energy sites since the U.S.-Israeli air war against Iran began almost three weeks ago.
The field is part of a vast gas reservoir shared by Iran and Qatar. The strike appeared to be one of the most significant attacks on an energy site since the U.S.-Israeli air war against Iran began.