Britain has engaged in a third wave of "proportionate and targeted" strikes alongside its US allies against Houthis in Yemen to further degrade their capabilities, the government said on Saturday.
"The Royal Air Force engaged in a third wave of proportionate and targeted strikes against Houthi military targets in Yemen. We acted alongside our US allies, with the support of many international partners, in self-defence and in accordance with international law," Defence Minister Grant Shapps said in a statement.
US officials told Reuters earlier in the day that the US had launched a series of strikes against targets in Yemen.
Britain and the US have launched coordinated strikes in Yemen this year against Houthi forces, who have been attacking shipping in the Red Sea in what they describe as acts of solidarity with the Palestinians against Israel.
That has fuelled fears that the conflict could spread to other regions in the Middle East.
"This is not an escalation. We have already successfully targeted launchers and storage sites involved in Houthi attacks, and I am confident that our latest strikes have further degraded the Houthis’ capabilities," Shapps added.
British police were questioning five men on Monday on suspicion of explosives and terrorism offences after they were detained near an air base that has been used by the US to strike Iran.
Thousands sheltered on Monday in evacuation centres in the Thai capital, parts of it still flooded after havoc brought by intense weekend rain, while swelling reservoirs in an eastern province triggered orders for more to leave their homes.
Heavy rain and storms have triggered floods and landslides that killed 56 people in India, while in Nepal, 14 have died and another 11 are missing, with authorities warning on Sunday that more flash floods are possible.
The death toll from an Indonesian ship that capsized earlier this month rose to 66 as of Monday, as divers braved leaking fuel and dangerously unsound structures to find the 69 passengers still missing on the 16th day of the search.
The number of confirmed Ebola cases in the Democratic Republic of Congo has risen above 8,000 for the first time in the Central African country's ongoing outbreak, government data showed on Monday.