SAN JACINTO, Calif. -- At a time of heightened tensions between the Riverside County Sheriff's office and the Soboba Band of Luiseno Indians, deputies Sunday sought two suspected gunmen from the reservation who are believed to have committed an armed home invasion robbery in nearby San Jacinto.

Deputies said no shots were fired and no one was injured in the latest incident, which was reported about 11 a.m. Saturday at a home in the 1100 block of East Main Street in downtown San Jacinto, according to San Jacinto police Sgt. Rick Garcia.

Witnesses trailed the suspects, who were armed with chrome-plated handguns, as the men drove past a tribal checkpoint and entered the Soboba Reservation. The vehicle was located by a sheriff's helicopter outside a home on the Soboba reservation and seized for evidence by Hemet-based deputies, Garcia said.

Investigators have identified the suspects as Soboba tribal members David Neil Morreo, 34, and Thomas Charles Durnin, 19, Garcia said. Both men remain at large and should be considered armed and dangerous, Garcia said.

The armed robbery comes after months of tensions between the Indians and the sheriff's office, which have resulted in charges of racism by the tribal government and allegations from the sheriff that the tribal checkpoint is hindering the investigation of violent crimes. Five Soboba tribal members have been killed in shootouts with local law enforcement officers this year.

Federal officials have investigated the status of the tribe's lucrative casino, and the sheriff's deputies' union has told people the casino is unsafe.

Last week, deputies arrested one man and sought another in connection with guns and ammunition found in a stolen vehicle on the reservation, according to sheriff's Lt. Patricia Knudson. Deputies seized two rifles and an illegally altered shotgun, and are seeking a Soboba resident named Whitecloud Trujillo in connection with that incident.

In Saturday's robbery, a 23-year-old San Jacinto woman told police two men pushed their way inside her home, pulled shiny, chrome-plated handguns and demanded to know where her roommate was, Garcia said.

When they learned the roommate wasn't there, they demanded anything of value and took the woman's roommate's wallet, Garcia said.

The suspects were leaving in a white, two-door Chrysler Sebring with tinted windows and 20-inch to 22-inch chrome rims, when the woman's roommate and another man returned, Garcia said.

The suspects threatened the roommate at gunpoint when he tried to get their license plate number, Garcia said. Then they drove east on Main Street through San Jacinto.

The roommate and his acquaintance got in a vehicle and followed the suspects on Main Street and east on Soboba Road, and turned around when the Sebring drove past the guard shack at the Soboba Indian Reservation, Garcia said.

Deputies said one of the men was described as "John," a Native American man in his 20s, about 6 feet tall and 175 pounds, with black hair, green eyes and a "Soboba Rez" tattoo on his left forearm. He was wearing a black hooded sweatshirt, black baseball cap, dark blue jeans and tan shoes.

The other man was described as a Native American man in his 20s, about 5 feet 10 inches tall, weighing 250 pounds, with a darker complexion. He had black hair, a goatee, and a large "Soboba" tattoo on his neck. He was last seen wearing a black hooded sweatshirt, a dark beanie, dark pants and tan boots.

The city of San Jacinto contracts with the Riverside County Sheriff's Department for police services. San Jacinto police officers are therefore also employees of the Sheriff's Department.

Tensions between the Sheriff's Department and the Soboba Band of Luiseno Indians have reverberated recently across the Southland region and beyond.

In May, three Soboba tribal members were killed in shootouts with Riverside County deputies on the reservation. Local law enforcement officials said suspects with high-powered assault rifles have fired on deputies, patrol cars and helicopters during the past year. A total of five Soboba have been killed by deputies in shootouts since December.

In August, Riverside County Sheriff Stanley Sniff urged the National Indian Gaming Commission to suspend a license for the Soboba Casino, which is on the tribe's reservation in the foothills of the San Jacinto Mountains, 35 miles southeast of Riverside.

Soboba tribal chairman Robert Salgado maintains his people are not above the law, but they have sovereign rights in Indian country.