Spain has closed its airspace to US planes involved in attacks on Iran, a step beyond its previous denial of use of jointly-operated military bases, Spanish newspaper El Pais reported on Monday, citing military sources.
The closure of its airspace, which forces military planes to bypass NATO member Spain en route to their targets in the Middle East, does not include emergency situations, El Pais added.
The Spanish Ministry of Defence did not immediately reply to a request for comment.
"This decision is part of the decision already made by the Spanish government not to participate in or contribute to a war which was initiated unilaterally and against international law," Economy Minister Carlos Cuerpo said during an interview with radio Cadena Ser when asked if the decision to close Spain's airspace could worsen relations with the United States.
Spanish Prime Minister Pedro Sanchez has been one of the most vocal opponents of the US and Israeli attacks on Iran, describing them as reckless and illegal.
President Donald Trump has threatened to cut trade with Madrid for denying the US use of Spain's bases in the war.
An Israeli air strike has killed at least three people in the Gaza Strip on Monday, local health officials said, in the latest round of violence since a US-brokered ceasefire took effect more than five months ago.
A United Nations peacekeeper has been killed in southern Lebanon overnight, prompting condemnations on Monday after a weekend in which Lebanese journalists and medics were killed in Israeli strikes.
Kuwait's Ministry of Electricity, Water, and Renewable Energy has announced on Sunday that an Iranian attack has killed one worker and damaged a service building at one of its power and water distillation plants.
Iran said it was ready to respond to a US ground attack, accusing Washington on Sunday of preparing a land assault even as the Trump administration sought talks and as regional powers met in Pakistan to try to end the conflict.
Heavy rain that triggered severe flooding and caused buildings to collapse has killed 22 people and injured 32 in Afghanistan over the last two days, the country's National Disaster Management Authority (NDMA) said on Monday, as it warned of continued risk due to bad weather.