A German court has jailed three Middle Eastern men for aiding al Qaeda. The heaviest sentence was given to Ibrahim Mohamed Khalil, who authorities believe is Syrian. He is starting a seven-year prison term for membership of a terrorist organisation and attempted insurance fraud.Palestinian Yasser Abu Shaweesh got six years for the same offences. Convicted of the lesser charge of supporting a terrorist organisation and attempted fraud, his brother Ismael Abu Shaweesh, was jailed for three and a half years. The trio maintained their innocence but the court in Duesseldorf heard they had supported al Qaeda plots to carry out suicide atttacks and attempted to raise militant funds through false life insurance claims.