LOS ANGELES - Residents of a South Los Angeles neighborhood were temporarily evacuated Sunday after new homeowners discovered two Vietnam-era grenades in their outside firepit, which were later destroyed on site by the bomb squad, a police sergeant said.

The grenades were discovered about noon in the backyard of a house at 415 E. 70th Street, just east of Avalon Boulevard, according to Los Angeles police Sgt. Omar Bazulto.

"The people who found the two grenades were new owners of the house," Bazulto said. "The backyard was pretty overgrown and the owners were doing landscaping when they found the grenades.

The LAPD was called and the department's bomb squad responded to the scene, Bazulto said.

"We evacuated the residents of the house and all the neighbors in a 300 square foot perimeter as a precautionary move," Bazulto said.

"Because of the rusted condition of the grenades which appeared to be from the Vietnam era, the bomb squad decided to destroy the grenades at the location," Bazulto said. "We didn't know if they were dummies but it was better not to take any chances.

The scene was wrapped up by 3:30 p.m. and all the evacuees were allowed to return to their homes, he said.

"We don't know how long the grenades were out there but that's a bad place to store grenades," Bazulto said.

No one was injured, he said.

The investigation into the grenades will be handled by the bomb squad, he said. And, he expects, detectives will try to contact the former owners of the house as part of their investigation into how the grenades got to that location.