The incident happened around 9.30am on Wednesday in Staines Road, Feltham, at the junction with Green Lane.

The name of the cyclist is not yet known. Police believe he was in his twenties.

One report suggested the man was trapped under the lorry.

Scotland Yard said: "Police were called by the London Ambulance Service at 09:37hrs to reports of a collision involving a lorry and cyclist on Staines Road in Feltham.

"Emergency services attended and provided first aid. Despite their efforts the cyclist, who is believed to be aged in his 20s, died at the scene."

A London Ambulance Service spokesperson told the Standard: "We were called at 9.34am this morning to reports of a road traffic collision in Staines Road, Feltham.

"We sent a number of resources to the scene including an ambulance crew, paramedics in fast response cars and an incident response officer. We also dispatched London's Air Ambulance.

"The first paramedic arrived in less than five minutes. Sadly, despite the efforts of our crews, a person died at the scene."

The incident is believed to be the fourth cyclist fatality in the capital this year.

In March, Chiestha Kochhar, 33, a postgraduate student at the London School of Economics, was killed in collision with a bin lorry as she rode a Forest rental e-bike in Islington.

An unnamed cyclist died after apparently colliding with a stationary car in Lower Sunbury Road, Hampton, on June 27.

Brazilian journalist and music producer Matheus Piovesan, 36, was killed in an allaged hit-and-run collision in Cable Street, Tower Hamlets, as he rode home late at night on July 6.