Prime Minister David Cameron said the rules for helicopter flights over central London would need to be carefully looked at following this morning's fatal crash.
Speaking at Prime Minister's Questions, he also paid tribute to the "brave and professional" response of the emergency services to the crash in Vauxhall, central London, after a commercial helicopter hit a crane on a high-rise building.
Pilot of the helicopter which crashed in London was Captain Pete Barnes from Berkshire, according to sources. Captain Barnes had a distinguished career with over 25 years flying experience - over 10,500 hours in helicopters and 500 hours fixed wing.
Emre Kaya and Tom Avis described the helicopter crash and the resulting fire.
South West Trains has confirmed that its rail services are not currently able to call at Vauxhall Station as a result of the helicopter crash in the area.
Train services are still running through the area but are not currently able to stop at Vauxhall Station to pick up or drop off passengers.Service updates are available on the South West Trains website and on Twitter at @SW_Trains
Confirming the deaths of two people in this morning's helicopter crash, Scotland Yard said two more people have been taken to a south London hospital. Their condition is unknown.
The helicopter came down during the rush hour this morning. Visibility was limited due to thick mist around the area where the crane is situated. Full coverage of the story on ITV News' national site here