Im having a coffee and cigarate in the veranda at the 5th floor of the apartment building at around 9 to 9:30 pm, then, suddenly there was group star-like lights (more than 50) in v shaped form travelling from n to s direction, ( s < n) in the sky from a dark-gray clouds, with very high altitude if compared to aircraft and with a great speed. i called my wife for her to witness what ive saw. it last for 5 minutes in the cloudy sky,. we were stunned by that group of lights. and both of us believed that it was a group of ufo's. it is like a group of tiny white dots in v shape group formation, travelling with a great speed in the sky.