ADEN (AFP) - A Yemeni military cargo plane crashed Tuesday while landing at a base in the southern province of Lahej killing at least four of 15 people on board, a military pilot said. Three Syrian technicians and one Yemeni were killed, the source at Al-Anad base told AFP, adding that eight Syrian engineers and seven Yemenis were on board the Russian-made plane. It exploded upon hitting the runway, he said. The pilot stressed that the Antonov plane was not carrying weapons. Al-Anad airbase was built by the British who ruled south Yemen till 1967.