Saudi Arabia airstrikes hit Houthi rebels-held Mokha airport in Yemen

Saudi airstrikes hit the rebel-held Mokha airport in Yemen on Friday, an Iranian-backed Houthi broadcaster reported, a day after the Houthis entered the key port city on the Red Sea, bringing them closer to the strategic Bab el-Mandeb Strait.

Their advance further threatens commercial shipping on an important alternative to the Strait of Hormuz.

Earlier Friday, Iran's government called for an end to Saudi Arabia's blockade of Yemen, throwing its support behind its ally, the Houthis.

In its first statement since the rebels entered the port, Iran's Foreign Ministry also called for a return to negotiations between Saudi Arabia and the Houthis.

The rebels' capture of Mokha, overlooking tanker routes out of the Red Sea, could boost Iran's strategy of driving up world oil and gas prices to pressure the United States, experts say.

It also raises concerns of a new front opening after more than six months of war in the region -- one in which Saudi Arabia is forced to respond.

Experts say th