LOS ANGELES - Three masked gunmen who held up a Moreno Valley credit union, and then jammed the Harbor (110) Freeway in Los Angeles, remained behind bars Saturday, a sheriff's sergeant said.

Riverside County sheriff's Sgt. Nathan Kaas said no new information would be released today about Friday's robbery of the Altura Credit Union in Moreno Valley.

The northbound Harbor Freeway was jammed midday Friday as gun-pointing police officers approached the getaway car in dense stopped traffic and arrested the three men. Cars were then inspected at a roadblock by officers on the freeway in a dramatic end to the 70-mile getaway attempt.

None of the suspect's names were released today, and deputies also were not talking about the tracking device in the loot that led police to confront the robbers in Los Angeles, they said Friday.

The incident began with the robbery at 9:20 a.m. in the 12100 block of Day Street in Moreno Valley, just east of the junction of the 60 and 215 freeways. The gunmen entered the business, went to a secured area where they demanded money and fled with an undisclosed amount of cash, Kaas said.

A sheriff's deputy monitored radio signals from the device and directed a sheriff's helicopter crew to the robbers' vehicle, which headed across northern Orange County and into Los Angeles. California Highway Patrol officers stopped traffic on the northbound 110 Freeway at 81st Street, Kaas said.

CHP officers and sheriff's deputies methodically approached the stopped vehicles in a search for the source of the radio signal. Some of the officers had their weapons drawn.

When the suspects' vehicle was found it had items that linked the suspects to the robbery, Kaas said. Traffic was re-opened a short time later, as offciers peered into each car at an impromptu inspection station in the freeway lanes.

No one was hurt during the hold-up, chase or arrests.