A major police incident is underway close to Kensington Palace after reports of "three loud bangs".
Eyewitnesses reported a huge police presence near Hyde Park in Central London as roads remain closed.
One witness told MyLondon they thought they saw a paramedic giving chest compressions to one person.
A helicopter is circling the area.
Officers have confirmed today's incident is not connected to the palace
Footage from the scene shows multiple police cars and a large cordon in place.
Kensington and Chelsea Police tweeted: "Officers are responding to an incident at the junction of Kensington Road and Palace Gate.
"There is no risk to the public but roads are closed and are likely to remain so for some time. We will post a further update in due course."
Author and journalist Millie Kerr, 40, who lives in the area was coming back from lunch in an Uber when she came to a standstill near the Palace Gate.
She said: "I wasn't there when the incident took place, but I got out of my Uber and started walking. I headed through the park and saw what I'm 95 per cent sure was paramedics giving chest compressions to at least one person.
"It was next to a car but I don't think it looked like a car crash had happened. The helicopter has just left the area in the last five minutes."
The Mirror Online has called the Metropolitan Police for a statement.
