Saudi calls attempted Mecca attack a 'red line', Houthis deny any role

Saudi Arabia accused Yemen's Iran-backed Houthi rebels overnight of trying to attack Islam's holiest city, prompting condemnation from countries in the region but no sign of military support.

The kingdom, a key US ally, declared Mecca a "red line" as it slid deeper into the new front of the Iran war.

With the world's biggest oil exporter under fire from the rebels backed by the Saudis' regional adversary, Tehran, the kingdom needs a safe outlet for its crude as well as military support.

However, a path to either one remains unclear.

A crucial Saudi pipeline has reportedly been shut down for weeks as the Yemen-based Houthis have been attacking infrastructure in the kingdom as well as its shipping on the Red Sea.

Iran is still targeting ships in the Strait of Hormuz.

Oil prices remain above USD 100 a barrel.

The Houthis denied firing drones toward Mecca, about 1,100 kilometres from Yemen's border.

The Saudis said they intercepted and destroyed the drone before it entered the airspace