A man believed to be homeless has been found dead a stone's throw from Parliament.
The man was found in the underpass of exit three of Westminster Underground station on Wednesday morning, the Metropolitan Police said.
Officers attended the scene with the London Ambulance Service, with the man pronounced dead at 7.33am.
Shadow Education Secretary Angela Rayner wrote on Twitter: "A homeless man who was seen frequently at the tube entrance to Portcullis House Westminster underground station has been found dead today.
"Whatever the circumstances it's a terrible tragedy that somebody ends their days like this, the govt must do more to combat homelessness."
Labour MP Neil Coyle said: "I've been told that the man who died on Parliament's doorstep this morning was homeless. What an appalling indictment of Government failure."
He tweeted: "When a homeless man dies on the Government's doorstep, ministers must stop ignoring the problem and commit to end rough sleeping."
Scotland Yard said the death is being treated as unexplained, but not suspicious.
A spokesman for the Ambulance Service said: "We were called at 7.16am today to Westminster Tube station, to reports of a man not breathing.
"We sent a team leader, an advanced paramedic, a cycle responder and two ambulance crews.
"Sadly, despite resuscitation efforts, he died at the scene."
A House of Commons spokesman said: "We are saddened to hear of the death of an individual this morning at Westminster Tube Station and offer our condolences to their friends and family at this difficult time."