Kuwait’s national oil company has declared a state of emergency following an oil leak in one of its southwestern fields, The National reported.

A statement by the Kuwait Oil Company (KOC) on Monday did not identify the onshore oil field affected by the leak which began Sunday but the state-run Kuwait News Agency said the leak had happened at the al-Maqwa field, as informed by Press TV.

Officials said there’s no sign of a toxic gas leak, affirming that Eastern Saudi were not affected by the leak. Details on how many barrels of oil had been spilled were not offered.

KOC’s Acting Deputy CEO for Administrative and Financial Affairs, Menahi Al­Enezi, said in a press statement that KOC teams were at the scene and responding to the situation in accordance with the relevant protocol.

In August 2016, Kuwait announced another spill at its Ahmadi field, and a fire in Fabruary struck another oil well after a spill.

OPEC member Kuwait is a major oil producer. According to the US Energy Information Administration, Kuwait produces some 2.7mb/d of crude oil and holds the world’s sixth-largest oil reserves.