Israel's Haifa-based Bazan Group said all refinery facilities have been shut down after a power station used to produce steam and electricity were significantly damaged in an attack by Iran, according to a regulatory filing on Monday.

Iranian media hailed the alleged fire, insisting it had been their target for attacks in the North, despite the majority of impacted rockets landing on residential homes.

The Iranian and Israeli strikes mark the most sustained, direct attacks ever between the two rivals. Three people were killed in Israel and at least 78 in Iran, officials said.