Yemen's Iran-aligned Houthis said on Thursday they had attacked a pumping station on the Saudi East-West oil pipeline, an oil facility in the Saudi Red Sea city of Yanbu, and an Aramco building in the capital Riyadh.
The Saudi-led military coalition fighting the Houthis said later on Thursday it had intercepted and destroyed two drones launched by the group, one in the Riyadh region and another in the kingdom's oil-rich Eastern Province.
Saudi Arabia did not immediately respond to a request for comment. The Houthis did not specify which day they had carried out the attacks.
The group has been firing ballistic missiles and drones at Saudi airports, ports, and oil installations, turning US ally Saudi Arabia into a pressure point in a war that began with the US and Israel attacking Iran in February.
With the conflict in the Middle East disrupting oil flows through the Strait of Hormuz, Riyadh has rerouted about 4 million barrels per day of crude via the East-West Pipeline to Yanbu, equivalent to about 4% of global supply.
The pipeline has spared Saudi Arabia, the world's biggest exporter, from the brunt of the impact of the wartime shutdown of the Strait of Hormuz that has crippled exports from its neighbors.
Houthis deny targeting Mecca with ballistic missiles
Separately, the Houthi military spokesperson on Thursday denied that the group had targeted Mecca with two ballistic missiles that Saudi Arabia's civil defense said had been intercepted and destroyed on Wednesday, with debris falling in the Mecca region, including in Sabuhah village.
The Houthis have repeatedly denied targeting Mecca and Medina, Islam's two holiest cities, rejecting previous Saudi-led coalition accusations that they had launched drones toward the cities.
The Houthis seized Yemen's capital Sanaa in 2014, prompting Saudi Arabia to intervene militarily the following year in support of the internationally recognized government.
A UN-brokered truce in 2022 largely froze the conflict, but hostilities resumed earlier this year, with the Houthis launching missile and drone attacks on Saudi territory and Riyadh carrying out airstrikes in Yemen.
The latest escalation has threatened the strategic Bab el-Mandeb Strait, a key shipping route linking the Red Sea and the Gulf of Aden.