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Hundreds of hotel workers gathered at an intersection near the Anaheim Convention Center, blocking traffic during a protest for higher wages and affordable healthcare, according to authorities.

The demonstration started at the intersection of Harbor Boulevard and Katella Avenue at around 6 p.m., Anaheim Police Department Sgt. Jeff Mundy said.

The protestors rallied next to the Hilton and Sheraton hotels before heading to the intersection.

At around 6:30 p.m., police officers started arresting protestors who were sitting in the middle of the intersection, refusing to leave.

A total of 21 people were arrested, including Anaheim Councilman Jose Moreno, Sgt. Mundy said.

Those arrested were transported to a mobile booking station, where they were cited for loitering and then released, according to Mundy.

Aerial footage from Sky 5 showed a large number of people crossing the streets, going from side to side.

The workers, who are represented by Unite Here Local 11,  held signs reading “Raise OC.”

“’We’re here & we’re not going anywhere’ until we win the respect we deserve,” a tweet by Unite Here Local 11 read.

The union represents about 29,000 workers in hotels, restaurants, airports, sports arenas and convention centers in Southern California and Arizona, according to a Twitter description.

“Workers at the Hilton Anaheim and Sheraton Park hotels were marching with allies for a fair contract that ensures affordable healthcare and enough money to make ends meet in Orange County,” a spokesman for the union, Andrew Cohen told KTLA in a written statement. “Workers have authorized strikes but view the action as a last resort. They also say the hotels have not been bargaining in good faith.”

KTLA’s Nidia Becerra contributed to this report.