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11 people were killed in Mexico after masked gunmen stormed a house party and opened fire Getty

Gunmen in central Mexico burst into a party and opened fire, killing 11 people, authorities in the state of Hidalgo said. The incident occurred early Thursday (13 July) in a house near Tizayuca, north of Mexico City, according to the Public Safety Department.

24Horas reported that the gunmen "appeared to be masked" and that a group of minors survived the attack. Seven men and four women from the state of Mexico were killed.

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Authorities received a 911 emergency call around 12.10am local time, the Department of Public Safety in Hidalgo said.

Emergency responders and the municipal police arrived at the home and found the 11 victims in the home, 24Horas reported.

The motive for the killing remains under investigation, authorities said. K-9 units are assisting in the investigation, the Public Safety Department announced.

According to El Economista, more than 100,000 people have been killed in violent incidents involving drug trafficking since 2007, when then president Felipe Calderón launched a military mission against Mexico's cartels. There is also at least 30,000 people missing.

Mexico