uniformed police were deployed at ucl hospital , by warren gardens power stop , after rumors of a target exited the facility . there was speculation that one of the officers may have been injured and sought treatment at the clinic . a sweden street representative had said " we are dealing with an accident at central college hospital and we have several officers deployed there . we cannot get in any further detail at this level . " a ucl spokeswoman confirmed that an sms had been sent to residents ask them to be on the lookout for the terrorist . at 16 : 00 a spokesman for the royal police confirmed that the emergency was over , but armed policeman went to the area 30 minutes subsequently to check the rooms . policing have now further confirmed this is irrelevant to the attack .
Police report there has been an explosion in the tube station.