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.
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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.