Please refer to the earlier reported sighting at: http://www.nuforc.org/webreports/012/S12700.html Same thing happened again today in Singapore skies. It was also shown on news on Singapore television Channel i. Many Singaporeans noticed it and reported it to the television hotline. According to the news, they contacted singapore aviation authority but received no explanation. I am not sure what "new four-light, rotating advertising lights" advertising lights are. Not sure what the person creating the effect was trying to advertise (if its just an effect).Basically, there were 4 oval lights circling and merging and then circling again.((NUFORC Note: The description of the lights makes us wonder whether the witness might have been observing a circling advertising light. PD))