Multiple blasts paralyse London Firefighters aid an injured passenger at Aldgate station Large numbers of casualties have been reported after at least six explosions on the Underground network and a double-decker bus in London. Scotland Yard confirmed one of several reports of explosions on buses in the city - in Tavistock Place - but said the cause was not yet known. UK Home Secretary Charles Clarke said several explosions in central London had caused "terrible injuries". All Tube services and bus services in central London have been suspended. "The health services are in support to deal with the terrible injuries that there have been," Clarke told reporters outside Downing Street. Metropolitan Police Commissioner Sir Ian Blair said there had been at least six explosions, but said the picture was still "very confused". Scotland Yard said explosions have been reported at Edgware Road, King's Cross, Liverpool Street, Russell Square, Aldgate East and Moorgate. 08:49 police called to Liverpool Street tube station after reports of a bang Blasts also reported at Aldgate East, Edgware Rd, Kings Cross, Moorgate, Russell Square tube stations 10:14 Reports of blast on bus at Tavistock Square Number 10 said it was "still unsure" whether the explosions were a terrorist attack and although casualties were reported, no further details were yet available. Prime Minister Tony Blair is to make a live televised statement on the explosions in London at 1200 BST, Downing Street added. All London Underground services have been suspended indefinitely and bus services in central London (Zone One) have been halted. A spokesman for Vodafone said emergency services were being given priority access to the mobile phone network which was causing problems for other users. One caller to BBC Five said his friend had seen "the bus ripped open like a can of sardines and bodies everywhere". Loyita Worley, who works for a City law firm, said she was on the underground train when an explosion took place in the next carriage, while it was in a tunnel. The 49-year-old said: "All the lights went out and the train came to an immediate halt. There was smoke everywhere and everyone was coughing and choking, but remained calm. We couldn't open the doors." Once the doors were opened they were taken along to Liverpool Street station. She said the carriage where an explosion happened was "black on the inside" she saw people who appeared to have their clothes blown off, and she saw bodies lying inside the carriage. And the Press Association quoted union officials as saying sources had told them there had been at least one explosive device on the Underground. There was immediately smoke everywhere and it was hot and everybody panicked. People started screaming and crying Jacqui Head BBC News Bus 'ripped apart' in explosion Have you been affected? British Transport Police said incidents took place at Aldgate, Edgware Road, King's Cross, Old Street and Russell Square stations. Scotland Yard confirmed they were assisting with a "major incident" and said there were casualties. Hospitals have said they are no longer accepting non-emergency cases, BBC Five Live reported. The National Grid, which supplies power to the Underground, said there had been no problems with its system which could have contributed to the incidents. 'Screaming and crying' Jacqui Head, from BBC News, who had just left King's Cross station on a Piccadilly Line train as an explosion happened, said: "Everything was normal. Suddenly there was a massive bang, the train jolted. "There was immediately smoke everywhere and it was hot and everybody panicked. People started screaming and crying." The train was kept in the tunnel for 20 minutes and no announcement was made to explain the delay to passengers, she added. Liberal Democrat MP Simon Hughes, near Kings Cross, told Five Live: "My only thought in the midst of all this confusion is that after the celebration of yesterday (for the Olympic 2012 London success) for people to be evil enough - if it is the intentional causing of death and injury - and think that they can justify this in any circumstances is completely unacceptable." London Fire Brigade said four crews were at Liverpool Street and more were on their way. Another passenger, who had left the Tube at Fenchurch Street Station, and walked to Aldgate East, told BBC Five Live that he saw injured people. "As I walked through the bus station I could see people lying on the ground, black, as if they'd been covered in smoke. There were about three or four people on the floor being treated." Eyewitness Paul Woloszyn from BBC News, who was at Blackhorse Road station on the Victoria Line, said: "We were told there was a bomb at Liverpool Street station. "I was on the Tube, and they stopped the train and told everyone to get off and evacuate the station." He said staff had said the entire Tube network had been affected, and leaflets had been handed out with details of alternative bus routes. Another eyewitness, Dorothy Molloy, had been on a Tube train at King's Cross and said "staff just chucked everyone out of the station". She said staff there had not given any details, but she said two passengers she had spoken to had said they had received messages saying there had been bombs. "People didn't really know what was going on, they were just huffing and puffing and saying how annoying it was," she said. "People don't seem to be panicked, but there's so many police and ambulances coming into the areas. People are just concerned, and some are just annoyed at the delay." This is just madness especially after celerbrating getting the Olympics!