LOS ANGELES—Experts say two rocket launchers turned in during a one-day gun buyback program in Los Angeles appear to be antitank weapons from the military.

The LA Times reports ( http://lat.ms/12O4KKo) one of the rocket launchers is likely a version of the AT4, a single-shot, disposable antitank weapon manufactured in Sweden.

Police said the people who turned them in claimed they had family members who were once in the military. Just the barrels of the weapons were turned in, without the projectiles.

Det. Gus Villanueva tells the Times police would check the origins of the weapons with the U.S. military to see if they were ever stolen. He says officers could not provide details on the models.

Wednesday's buyback program brought in 2,037 firearms, including 901 handguns, 698 rifles, 363 shotguns and 75 assault weapons.

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Information from: Los Angeles Times, http://www.latimes.com