Metro Police officers speak with a man near the concert site on October 2, 2017, after a mass shooting during a music festival on theLas Vegas Strip in Las Vegas, Nevada, U.S. (Xinhua/REUTERS)

WASHINGTON, Oct. 2 (Xinhua) -- The U.S. Department of Homeland Security (DHS) said Monday that investigation is underway for the Las Vegas shooting that has killed more than 50 people.

"At this time, we have no information to indicate a specific credible threat involving other public venues in the country," the DHS said in a statement.

"Increased security in and around public places and events may be experienced as official take additional precautions," it said.

At least 50 people were killed and over 200 others wounded in a mass shooting at a concert Sunday night outside the Mandalay Bay Hotel in Las Vegas in the U.S. state of Nevada.

The death toll if confirmed would make the mass shooting the deadliest in U.S. history and surpass the 49 killed at an Orlando nightclub last year.

Investigators identified the shooter, 64-year-old Stephen Paddock, as a local resident and did not find any links to terrorism.