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.
At least 9 killed in hotel fire in India's Kolkata
At least nine people have been killed, including a child, in a fire at a hotel in India's eastern city of Kolkata on Wednesday, local police said.
Ebola cases in Congo exceed 5,000, government data shows
The number of confirmed Ebola cases in the Democratic Republic of Congo now exceeds 5,000, government data has showed late on Tuesday, as health officials warn that response efforts are failing to contain the deadly disease.
8 Israeli airstrikes hit Syria's Abu al-Duhur airbase, state TV reports
Eight Israeli airstrikes have hit the Abu al-Duhur military airbase in northwestern Syria early on Tuesday, targeting the runway and storage facilities, Syria's state-run Ekhbariya said, citing a military source.
Indonesia earthquake death toll rises to 70, government aid arrives
The death toll from the powerful 7.7-magnitude quake that struck Indonesia last Saturday has risen to 70.
Two killed in high school shooting in southern Philippines
Two students were killed in a shooting at a high school in the southern Philippines on Tuesday, one of them the gunman, officials said, in the second such incident in the country in less than two months.
