Shots Fired Outside U.K. Parliament

A serious incident occurred in London near the UK Parliament, where at least one person is being held at gunpoint by police. Reporters observed two people on the ground outside Parliament. The area around Parliament Square has been closed off, and the House of Commons sitting has been suspended. The breaking news is that shots have been fired outside the UK Parliament.

How many people were reported to be on the ground outside Parliament?

What action did the police take in response to the situation?

What was the status of the House of Commons during the incident?

What was the nature of the breaking news reported?

What event occurred outside the UK Parliament?