Officials in Egypt said the balloon crashed carrying the group of tourists, after strong winds forced the balloon off course.
An American was reportedly killed in the crash, which came as a group of Egyptian citizens and the foreign tourists took a tour over the famous Valley of the Kings.
At least 12 people were also injured in the accident and have been hospitalized.
The tourist who was killed is a United States national, though the nationalities of the other tourists injured are still unknown, Al-Ahram reported.
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Senties says investigators don't believe the man intended "to use the weapons or to cause any kind of issue". A police spokesman said Sunday afternoon that investigators couldn't speculate about the man's intent.
In 2016, balloon flights were temporarily halted in the city after more than 20 people were injured in a similar accident.
The balloon was carrying both Egyptians and foreign tourists, with the nationality of the latter not yet having been disclosed.
Since then, balloon rides have been monitored by cameras and banned from flying above 2,000 meters.
The deadliest balloon crash in history occurred in February 2013 in Luxor, when 19 people were killed.
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