Three robbery suspects who fled a Novato manhunt on Monday were arrested at San Francisco International Airport, bringing the number of jailed suspects to seven.

Investigators are still looking for an eighth suspect, a woman. Authorities initially said an additional man was involved, but on Tuesday they said the woman is the only outstanding accomplice.

The men in custody were identified as residents of North Carolina and Virginia. Investigators suspect they came to California looking for marijuana cultivators to rob.

The failed caper started early Monday morning in Petaluma, where a band of gun-toting robbers struck three homes on Eugenia Drive, the Sonoma County Sheriff’s Office said. The robbers tied up the residents and pistol-whipped one of them.

None of the properties was involved in marijuana cultivation.

The robbers fled the neighborhood in two vehicles, a van and a Volkswagen Passat. Petaluma police spotted the cars and chased them into Marin County.

The occupants of the van stopped along Highway 101 near San Marin Drive and ran toward the Wood Hollow neighborhood in northern Novato. They left several guns in the van and around it.

Authorities quickly arrested one of the suspects — Ledarrell Javon Crockett, 28, of Winston-Salem, North Carolina — and launched an unsuccessful half-day search for the other van occupants.

Meanwhile, police found the Volkswagen outside the Costco in the Vintage Oaks Shopping Center in Novato. Police arrested three men there but the woman escaped.

The suspects arrested outside Costco were identified as Chrisshawn Denardray Beal, 20, of Winston-Salem; Melvin Corbin, 19, of Richmond, Virginia; and Jaray Day-Shawn Simmons, 28 of Winston-Salem.

At about 7 p.m., investigators intercepted three more suspects who were trying to board a flight back to the East Coast. They were identified as Nakia Robert Lydell Jones 22; Romello Shamar Jones, 20; and Siddiq Jafar Abdullah, 21.

Jones, Jones and Abdullah are residents of Richmond, Virginia.

The seven men are being held at the Sonoma County Jail on allegations of robbery of an inhabited dwelling, burglary, false imprisonment, kidnapping and conspiracy, the sheriff’s department said. Bail was set at $1 million.

Beal is also being held on a no-bail warrant from North Carolina.

The incident was the second time in five weeks that alleged robbers from across the country raided Sonoma County homes for marijuana, the Press Democrat noted.

On Feb. 8, five masked robbers entered two homes in Santa Rosa before dawn, restraining residents with duct tape in a quest for marijuana and money, the newspaper reported. Two residents were shot during the raids, one fatally.

Four of the suspects were arrested and one remains at large. One suspect lives in Santa Rosa and the rest are residents of Virginia, Mississippi and New York state.

“Twice in just over a month people came from the East Coast and targeted homes in our county,” said Sonoma County sheriff’s Sgt. Spencer Crum. “It’s very concerning and disturbing.”

Tribune News Service contributed to this report