Derek Bell, reporting in Sky9 overhead at Telegraph and Pettit, said the accident occurred about 6:51 p.m.
The driver of the Hummer allegedly struck 4 bicyclists, in two separate locations. He fatally struck one, the other three have serious injuries.
CHP is investigating and interviewing witnesses.
Ventura County’s public information officer said the driver also hit a vehicle with two people inside. They were not injured.
A cyclist followed the green Hummer to the alleged driver’s residence, about a quarter mile away from the site of the fatality, and called police.
Officials have impounded the Hummer.
Officers said the driver failed to comply and he tried to remain holed up inside his residence.
Authorities have not said if the driver was under the influence, had a possible medical issue, or distracted by cell or texting, pending the completion of their investigation.