An Iraqi court on Sunday sentenced four to life in prison over an attack on Baghdad airport early this year that damaged two empty civilian planes on the tarmac. Sunday’s conviction was for a January 28 rocket attack on Baghdad’s international airport that caused no casualties. The court “sentenced to life four criminals who took part” in the attack, according to a statement by Iraq’s Supreme Judicial Council. The statement did not provide any details on the convicts’ identities or political affiliations, AFP reported. Frequent attacks on bases hosting foreign -- mainly US -- military contingents have been blamed on pro-Iran groups, many of which demand the complete withdrawal of US forces from Iraq.