Kneeling in front of riot police, 32 religious leaders and activists were arrested at the U.S. border fence in San Diego on Monday during a protest to support the Central American migrant caravan.

More than 400 demonstrators, many leaders of churches, mosques, synagogues and indigenous communities, sought a halt to detention and deportation of migrants and for the United States to welcome the caravan that arrived in Tijuana, Mexico in November.

Singing and praying, religious leaders moved forward in lines of four to six, some wearing T-shirts reading, “Love Knows No Borders.” They were handcuffed and led away by federal agents upon entering a restricted area in front of the fence.

“As a Quaker who believes in our shared humanity…We’re calling on the U.S. to respect the rights of migrants,” said Joyce Ajlouny, general secretary of the American Friends Service Committee, which has run a week of actions to back migrants.

U.S. Border Patrol spokesman Theron Francisco said 31 people were arrested by Federal Protective Services for trespassing and one was arrested by Border Patrol for assaulting an agent.