Two Porsches were taken within the last two months from residential areas, including one from a driveway, in the last two months, Laguna Beach police said in a news release.
Police consider the thefts "unusual because they are both late 1990s models, which were alarmed and parked on residential streets," Capt. Jason Kravetz said in the release.
Owners left the cars outside their houses and found them missing the following morning.
The first theft occurred June 6, when a 1996 Porsche (911 model) was stolen in front of a house in the 900 block of Canyon View Drive, police said.
Then on July 10, a 1997 Turbo was taken from a driveway in the 700 block of Nyes Place, Kravetz said.
Similar car thefts have happened throughout Orange County, according to police.
To report any suspicious activity, call Laguna Beach police at (949) 497-0701.
Police recommend the following tips to help avoid becoming a victim of auto theft: never leave the car running or leave the key in the ignition while the car is unattended; always roll up the windows and lock the vehicle, even if it's parked in front of a house; remove all valuables from the vehicle, keeping them out of sight; park in well-lit areas as more than half of vehicle thefts occur at night; write down the vehicle identification number to help police track the car if it's stolen.