A man was injured in an attack at the offices of the International Committee of the Red Cross (ICRC) in Libya\'s Misrata. An ICRC spokesman said: \"The ICRC confirms that an explosion occurred in our Misrata office at 3.50am on June 12. The nature of the explosion is not verified yet, but the authorities were informed and were on site early at five in the morning.\" The man who was injured was the son of the owner of the offices, who is living in the compound. There is no indication yet as to who was responsible, but an attack last month at the ICRC headquarters in Benghazi was claimed by a group calling itself the Sheikh Omar Abdul Rahman Brigade. It is named after an Egyptian known as \"the blind sheikh\" who is serving a life sentence in the US in connection with the bombing of the World Trade Centre in New York in 1993. On June 2 the group issued a statement accusing the ICRC of Christian evangelistic activities in Libya, who then warned the aid group to remove all \"Christian\" signs from its material and cease any evangelistic activity. The ICRC\'s mission statement says it is \"an impartial, neutral and independent organisation\" with an \"exclusively humanitarian mission\".