The heaviest fighting since the Iran war began is taking place in Yemen currently, also involving significant overnight attacks on Saudi energy and military sites by the Houthis.

The Houthis have since unveiled new operations, in a Tuesday statement saying the Iran-aligned group is targeting critical Saudi oil and military infrastructure. Widely circulating local videos suggest the attacks on multiple sites were in some case simultaneous and overwhelming.

"In response to this brutal aggression and in confronting comprehensive escalation with comprehensive escalation, the YAF carried out a large-scale … operation, targeting Aramco facilities in Abha and Najran, the Economic City, Aramco in Jizan, and Khamis Mushait Air Base, using dozens of ballistic missiles and drones," said the Houthi statement.