Police officers said that a 58-year-old gunman killed two people and wounded nine before shooting himself at the Grand Theatre in Lafayette, Louisiana, a US state. The incident happened at 01:30 GMT.
Police chief Jim Craft of the Lafayette Police Department said that they identified the attacker and found an old criminal record among his documents.
Although officials did not release any further details, witnesses reported that the gunman started shooting 20 minutes after the screening had begun.
BBC reported that up to 100 people were present during the incident. The wounded people have been hospitalized.
The governor of Louisiana Bobby Jindal, went to the crime scene and told reporters that "we will get through this. We are a resilient community."
"Whenever we hear about these senseless acts of violence it makes us both furious and sad at the same time," Jindal added.
"There's no good reason why this type of evil should intrude on the lives of people who are just out for entertainment."
Prayers for Lafayette at Grand Theater. Talking to state police colonel about shooting in Lafayette.
— Gov. Bobby Jindal (@BobbyJindal) July 24, 2015
Louisiana State Police Colonel Michael Edmonson said that, "we don't believe there's anybody else involved," over the suspicions of a possible militant attack.
Police officers have evacuated the region and sent a bomb squad after finding unidentified objects in attacker’s car.
The incident came after the US President Barack Obama made comments on the gun law reform as the “greatest frustration” of his period.
Obama told BBC during his interview that "if you look at the number of Americans killed since 9/11 by terrorism, it's less than 100. If you look at the number that have been killed by gun violence, it's in the tens of thousands."
Currently, 27-year-old James Holmes is faced with the death penalty for first-degree murder over the shooting he conducted during the screening of “The Dark Night Rises” in Aurora,Colorado, a US state, on July 20, 2012.
The mass shooting killed 12 people and wounded another 70, while dozens fled the theatre.