Details are sketchy at this time, but there has been an attack outside the British Parliament:
Britain’s Parliament was placed on lockdown on Wednesday afternoon after a man stabbed a police officer and was then shot by other officers. The Metropolitan Police said it was treating the violence as “a terrorist incident,” as the country’s seat of power was put on high alert.
Witnesses also reported that a motorist on Westminster Bridge, next to Parliament, operating a large vehicle, mowed down at least five people before coming to a halt, but it was not clear if the motorist was also the assailant.
The White House is apparently waiting to see if the attackers were Muslim before expressing outrage.