In Libya, Saif al-Arab, the youngest son of Muammar Gaddafi, and three grandchildren of the Libyan leader have been killed in a NATO air strike. Libyan government said today that the house of Saif al-Arab Gaddafi was attacked last night. Libyan leader Muammar Gaddafi with his wife was there in the house but they escaped unhurt. Many other people in the house were injured. The Spokesperson said, this was a direct attempt to assassinate the leader of the country. According to reports, the building was extensively damaged and one unexploded bomb remains at the site. Saif al-Arab was the youngest of Gaddafi's six sons.