LOS ANGELES, Calif.–A 17-year-old boy was fatally shot in southwest Los Angeles today, and police arrested one of two suspects believed involved in the crime.

Paramedics sent to Manchester and Western avenues shortly before 8 a.m. picked up the wounded teen but could not save him, authorities said. He was declared dead a hospital, said Los Angeles police Sgt. Tim O’Gorman of the 77th Street Station.

Police arrested one young man and sought another, O’Gorman said. A gun believed to have been used in the crime was recovered, O’Gorman said.

Anyone with more information about the killing was asked to call the police tip line at (877) LAPD-24-7.