About 3 p.m., a man rang authorities saying that someone had killed his brother and mother and asking for help.

Cops responded and promptly arrived at the Long Island address in New York and found the callers 17-year-old video game opponent playing “Call of Duty”.

The hoax – involving more than 70 emergency responders – appears to have been an example of a “game” called Swatting.

“In this … bizarre world of Swatting, you get points for the helicopter, for the police cars, for the SWAT team, for the type of entry,” Long Beach police commissioner Michael Tagney told the local CBS station. “It’s very sophisticated. Unfortunately, it’s very dangerous.”

The caller got police from Nassau County, Long Beach and the MTA to respond with SWAT teams and hostage negotiators.

“I don’t know why the people called the police,” Maria Castillo, the teen’s mother, told 1010 WINS.

The perpetrator placed his emergency call using the Internet and could be anywhere across the globe. Investigators are trying to track down the call’s origin.