The ufo which amused in good thursday.we seen a fast flying light disk flying horizontaly to right and left.first we seen it about 60 degrees in the south sky. then while its shaking it began to go ayay means we could see it came towards the land side while it is toaching the louminus [ green/blue colour] colour beam. when it went to the top point in the boyh right and left sides it is suddently dissapeared. then after about three seconds it began to run towards the opposite side.this incident was occured in srilnaka.it is true. but i don't know whether it is a ufo or any other thing. if you have some knowledge please give us information.