Yesterday witnessed at least the eighth Saudi oil tanker attacked by the Houthis since the maritime blockade began on July 22, which is being followed by reports the Yemeni rebel group backed by Iran could be preparing for all-out war with Saudi Arabia.

The group struck two Saudi oil tankers in the Red Sea on Wednesday and coupled the action with a threat to intensify attacks in order to close "all access routes" to Saudi oil shipments. Military spokesman Brig. Gen. Yahya Saree confirmed that ballistic missiles were launched at a Saudi tanker called Wafa near the Saudi port city of Yanbu.

A second oil tanker identified as Daisy was subsequently hit in the Gulf of Aden with a ballistic missile and "forced to turn back" - the spokesman said in a social media post. The Houthis are dubbing it a "blockade for blockade" strategy.