British police said on Tuesday they were dealing with a security incident at London's St Thomas' Hospital, with the nearby Westminster Bridge leading to parliament closed to traffic.
Police said they would provide more information when known.
Witnesses reported on social media that there were armed police present and that the hospital was not allowing people to enter or leave.
There was no immediate comment from the hospital.
Strong quake hits Mexican coast near Guatemala, triggers tsunami threat
A powerful magnitude 7.3 earthquake struck near the coast of Mexico's southernmost state of Chiapas on Friday, triggering a tsunami warning and shaking buildings in neighboring Guatemala and El Salvador.
US completes 'major' wave of strikes on Iran, Gulf states under attack
The US Central Command (CENTCOM) has announced that it completed its latest major wave of strikes against Iran, while Kuwaiti and Qatari defence forces reported intercepting missile attacks early on Friday.
Andy Burnham becomes UK Labour leader; next stop - prime minister
Andy Burnham, nicknamed the 'King of the North', was elected leader of Britain's governing Labour Party on Friday, the final step before becoming its seventh prime minister in a decade on a pledge to thwart the rise of the populist Reform UK.
Kuwait says Iranian attack damages power generation, water desalination station
One of Kuwait's power generation and water desalination stations was hit in an Iranian attack, causing damage to facilities, a fire and the disruption of a large number of electricity generation units, Kuwaiti authorities said on Friday.
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