armed police were employed at ucl university , near warren street tube terminus , after reports of a suspect entering the hospital . there was speculation that one of the bombers would have been attacked and sought treatment at the airport . a scotland yard spokesman had said " we are dealing with an incident at much college hospitals and we have unarmed officers out there . we should go in any further context at this stage . " a ucl spokesmen confirmed that an embassy had been sent to staff advising them to be on the lookout for the suspect . at 16 : 00 a deputy for the metropolitan police confirmed that the incident was over , but military policeman deployed to the hospital 30 minutes later to search the premises . guards have now strongly clarified this is unrelated to the explosions .
Police report there has been an explosion in the tube station.