HONG KONG - SEPTEMBER 30:  Protesters sing songs and wave their cell phones in the air after a massive thunderstorm passed over outside the Hong Kong Government Complex on September 30, 2014 in Hong Kong, Hong Kong. Thousands of pro democracy supporters continue to occupy the streets surrounding Hong Kong's Financial district. Protest leaders have set an October 1st deadline for their demands to be met and are calling  for open elections and the resignation of Hong Kong's Chief Executive Leung Chun-ying.  (Photo by Chris McGrath/Getty Images)