SAN DIEGO — An argument between two La Jolla residents escalated into a bludgeoning assault that sent one of them to a hospital and the other to jail.

The men were quarreling in the 7500 block of Mar Avenue about 9:30 a.m. when one of them, a 57-year-old man, struck his 49-year-old neighbor with a hammer several times, according to San Diego police Sgt. Ed Zwibel.

A witness called police, and patrol officers took the suspected assailant into custody, the sergeant said. The arrestee's name was not immediately available.

Medics took the victim to a trauma center for treatment of non-life- threatening injuries, Zwibel said.

The reason for the dispute between the men was unclear.

Editor's note: The weapon in this case was previously reported to be a hammer. It was revealed in court on Aug. 23 that the alleged weapon was actually a wooden club which may have been a hammer handle but did not have a hammer head attached.