The army downed the unmanned aircraft over Khuzestan province before dawn using a Mersad surface-to-air missile, Tasnim news agency reports.
Several others were badly wounded in the blaze at The White Horse Nightclub in Coatzacoalcos in Veracruz state. The blaze is being investigated as an attack.
The interior ministry reports a homicide rate of 20.5 per 100,000 inhabitants across drug-ravaged Mexico in 2017.
The storm was downgraded to Category 1 but not before it pummeled central Florida, leaving destruction in its wake.
One of the most powerful earthquakes ever to hit Mexico was followed by a Gulf coast hurricane, dealing another blow to the country.
Claims in Texas jumped more than 400 percent for the week, climbing to 63,742 after the storm, from 12,105 the week before.
Engineers began releasing water from the Addicks and Barker reservoirs Monday to ease the strain on the dams, meaning that more homes and streets will flood, and some homes will be inundated for up to a month,
There are no official reports on the size or what may have caused the spill but experts estimate as many as 35,000 barrels of crude oil may have leaked into the waters off Kuwait's Ras Al-Zour area.
BP to pay $18.7 billion as compensation over 2010 oil spill in Gulf of Mexico as US Judge Carl Barbier finalises settlement
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