An upside-down hot air balloon flying in Las Vegas sparked a flurry of 911 calls though the flight was planned.
NBC affiliate KSNV-TV reports the strange balloon spotted Friday appeared to be standing on its head. But the station reports there was a concealed cabin on the underside. The balloon also had a dummy cabin at the top.
The balloon comes from the company Cameron Balloons. The engineers who constructed the balloon said they worked with great enthusiasm to produce the special shape balloon.
Still, police say a number of residents called and reported that the balloon may be in trouble.
Authorities say the company had alerted authorities beforehand about the stunt.