RIYADH: Yemen’s Houthi militia fired rockets and mortars into the southern province of Najran on Tuesday, the Saudi Press Agency (SPA) reported.

Brig. Gen. Ahmad Al-Assiri, spokesman of the Saudi-led “Operation Restore Hope”, confirmed the attack and said a number of injuries were reported, SPA said.

Al-Assiri was quoted as saying Houthis fired mortar shells and some Katyusha rockets randomly, hitting some schools and a field hospital in Najran.

Saudi Arabian Airlines canceled flights into the border area of Najran as schools closed early amid the attack.

Al-Assiri said the shelling was not unexpected, considering that the Houthi militias have rejected the UN resolution that called for a cessation of hostilities in Yemen to allow humanitarian activities to take place. He also said the assault reflects the state of “Houthi chaos.”

Nonetheless, the general assured the citizens of Najran that the situation is now “under control” and ground troops and border guards now are doing their job in dealing with the source of the attack.

He said the attackers “will not go unpunished” and the Saudi forces will deal with them appropriately. He added that Saudi Apache attack helicopters returned fire.

“We will continue to respond firmly because one of the goals of Operation Restore Hope is a response to the work of the Houthi militias,” he said in a press conference in Riyadh.

Meanwhile, hundreds of families fled Aden after Houthis advanced into their neighborhoods, firing indiscriminately as they took over surrounding, towering mountains.

(Additional input from AP)