Police are trying to find out who vandalized more than a half-dozen homes in Newport Beach with graffiti that included a profane assessment of Republican presidential front-runner Donald Trump.

Neighbors woke up Thursday morning to find two garage doors bearing the words "[Expletive] Trump” and "[Expletive] the system” sprayed in large letters with white paint.

In all, eight houses or apartments in an affluent neighborhood near China Cove in Corona del Mar were spray-painted, police said.

Some residents in Corona del Mar woke up Thursday to a rash of spray- painted graffiti on trash cans, homes and city signs. (Courtesy E. Jung)

Some city signs also were vandalized, Newport Beach police spokeswoman Jennifer Manzella said.

Most of the graffiti didn’t carry a political message, according to police.

Residents discovered the vandalism around 7:30 a.m. Thursday, and police began taking stock of the damage and contacting homeowners, Manzella said.

A road sign in a Corona del Mar neighborhood was tagged with graffiti. (Courtesy E. Jung)

The message lashing out at Trump led some residents to believe that the neighborhood of multimillion-dollar homes was targeted because of its wealth.

“I was just thinking it was the association of somebody with money,” said one woman who lives nearby and asked not to be identified for fear of being targeted.

Authorities said Thursday that they had no suspects or an estimate of the damage.

At least two residents told police the graffiti must have appeared sometime after 8 p.m. Wednesday, after they arrived home for the night.

Manzella said investigators haven’t found any witnesses to the crime and are looking for surveillance footage or other leads.