This is the full statement Jeremy Corbyn has put out after the incident at Westminster this afternoon.
Reports suggest the ongoing incident in Westminster this afternoon is extremely serious.
Our thoughts are with the victims of this horrific attack, their families and friends.
The police and security staff have taken swift action to ensure the safety of the public, MPs and staff, and we are grateful to them.
More from LabourList
Surplus Vaughan Gething donations will not go to Labour party
Labour’s ‘first steps’ pledges: Poll reveals what voters think
Islington North selection in Jeremy Corbyn’s seat: Who is standing, and will Corbyn run as an independent?