Qatar has sent at least 200 tonnes of aid, including medical supplies, to help Libyan opposition forces since foreign support began to arrive.<br />The Qatari air force showed Al Jazeera a cargo plane bound for Libya containing computers, printers, rice, milk and sugar.<br />The main cargo on the plane were a military police unit and some intelligence personnel. Also on the plane were four trucks full of wooden boxes which were clearly marked "munitions".<br />Al Jazeera was unable to find out if they were for the Qatari security forces to use or the rebels. <br />But the trucks were driven away by men who told Al Jazeera they had recently joined the pro-democracy fighters.<br />Al Jazeera's Rosie Garthwaite reports from an air base in Benghazi.