Man looks at smoke billowing from the military academy during a Saudi-led air strike in Sanaa.

An Arab coalition leading an air campaign against Houthi militias in Yemen intensified air strikes in northern Sanaa on Sunday, Al Arabiya News Channel reported.

The fresh strikes came after the coalition, led by Saudi Arabia, announced it would be carrying out its “heaviest” aerial campaign against the militias, following the deaths of 45 soldiers from the United Arab Emirates, 10 from Saudi Arabia and five from Bahrain.

The incident took place on Friday when Houthis fired a missile that hit a weapons store at a military camp in the eastern province of Maarib in Yemen, according to official Saudi and Emirati news agencies.

Arab airstrikes on Saturday targeted the arms depot from which the Houthis launched the missile that killed the soldiers.

The coalition also targeted one of the biggest arms depots in Maarib, as well as Houthi positions in several parts of the capital Sanaa, according to Al Arabiya.

In another development, forces loyal to internationally-recognized President Abdrabbu Mansour Hadi seized parts of Yemen’s southwestern city of Taiz from Houthis.

Since late March, an Arab coalition led by Saudi Arabia has bombed Iranian-backed Houthi militias and forces allied to deposed leader Ali Abdullah Saleh, in a bid to restore Hadi’s government back to power.