Yemen’s Houthis claim to have launched drone attacks against Saudi Arabian energy giant Aramco’s facilities, amid a surge in fighting between the rebels and forces loyal to the Riyadh-backed government in Yemen.

Axar.az reports citing foreign media that neither Aramco nor Saudi authorities immediately confirmed the attack.

Houthi spokesman Yahya Saree said in a statement on Monday carried by the pro-rebel Al Masirah television that the attacks took place overnight, in retaliation for the six-year military campaign led by Saudi Arabia in Yemen.