In northwestern Iran, the semi-official Tasnim news agency reported on Sunday that 20 ​people were arrested on accusations by the provincial prosecutor’s ​office of sending location details on Iran’s military and ⁠security assets to Israel.

In northeastern Iran, which has remained relatively untouched ​by air strikes, Tasnim reported the arrest of 10 people on ​Sunday, with some accused of collecting information on sensitive locations and economic infrastructure.

“As the Zionist enemy (Israel) and the US are attempting to invade Iran, they ​simultaneously activate mercenaries and spies to carry out riots as ​the next step,” a provincial branch of the Revolutionary Guards’ intelligence organisation said, ‌according ⁠to Tasnim.

The Student News Network also reported on Sunday that three people were detained in the western province of Lorestan for “seeking to disturb public opinion (…) and burn mourning symbols.”

Israel has begun targeting security ​checkpoints based on ​tip-offs from ⁠informants on the ground, representing a new phase of its assault on Iran, a source briefed on Israel’s ​military strategy told Reuters this week.

In January, weeks ​before ⁠the US and Israel launched the current war against Iran, there were widespread anti-government protests in Iran that were repressed in the deadliest crackdown ⁠in ​the Islamic Republic’s history.

Authorities had blamed Israel ​and the US for fomenting what they said were “violent riots” aimed at overthrowing the ​clerical establishment.