When the first London terrorist bomb went off in a tunnel in the underground, many people, including the emergency services, wrongly thought it might have been caused by a power surge.The first emergency calls came in just before 9 o’clock in the morning rush hour. The police estimate the first explosion happened at 8.51 am between Moorgate and Liverpool street stations. It has been confirmed seven people died in the blast there. Many others were hurt. The second attack happened just five minutes later, between King’s Cross and Russell Square stations. That explosion claimed 21 lives. At 9.17 am another blast struck Edgeware Road station, so forcefully it actually broke through a wall, damaging three trains. Police have confirmed five deaths at that location. And then, while tens of thousands of commuters were being evacuated from all nearby stations, a bomb went off on a bus near Tavestock Place near Euston.The police say the number of people killed there is yet to be confirmed. Authorities say they had not received any warning before the explosions, and they have not received any claim of responsibility. They say a message on anislamist website is being checked out. Londoners had been told to be on alert for possible terrorist attacks ever since September 11 and the Madrid train bombings. This is in light of Britain’s staunch support of the US in its “war on terrorism”. As the injured are treated, and people try to cope with the shock of what hashappened, investigators begin the search for clues as to exactly who is responsible.