Yemen’s Iran-aligned Houthi movement has claimed responsibility for a drone attack on Saudi Aramco’s Jazan refinery, just days after Saudi Arabia signed a new defence pact with Pakistan and Türkiye.

The Houthis said on Sunday that they targeted the refinery as part of a wider campaign against Saudi Arabia. Houthi military spokesperson Yahya Saree said the group also carried out missile and drone strikes against the Red Sea port city of Mocha in Yemen.

Saudi Arabia’s Energy Ministry confirmed that a fire broke out at the Jazan refinery but said it was later extinguished. No injuries were reported, while authorities were investigating the incident. Saudi officials did not immediately confirm that the fire was caused by the Houthi attack.

The latest strike comes amid rising regional tensions. The Houthis declared a naval blockade against Saudi Arabia in the Red Sea last month, alleging that Riyadh was imposing a siege on areas under Houthi control. Saudi Arabia has denied the allegation.

The Jazan refinery, located near the Yemeni border, has previously been targeted. A July 27 attack damaged parts of the facility and led to a temporary shutdown, according to a consultancy note reviewed by Reuters.

The latest escalation follows Saudi Arabia’s signing of a defence agreement with Pakistan and Türkiye. The pact states that an armed attack against any one of the three countries will be treated as an attack against all three, strengthening their collective deterrence.