(CNN) -- A wall of angry protesters blocked three buses of undocumented immigrants in Southern California, forcing them to turn around -- but with no clear final destination.
The immigrants had traveled from south Texas to San Diego and were on their way to be processed at the Murrieta Border Patrol station when the standoff took place Tuesday.
Protesters chanting 'USA!' 'Impeach Obama!' and 'Deport, Deport!' blocked their route.A heated yelling match ensued between the demonstrators and a group of counterprotesters.
After the buses turned around, the 140 people on board were taken to a border station in San Ysidro, said Ron Zermeno of the National Border Patrol Council.
It was not immediately clear whether they would stay there or what would happen next.
But several children were taken to Rady Children's Hospital in San Diego with unknown illnesses, border patrol officials told CNN affiliate KGTV.
Enormous challengeThe U.S. government is struggling to process and accommodate an influx of undocumented immigrants, and specifically a spike in immigrant children. The government doesn't have enough beds, food or sanitary facilities.
Authorities estimate 60,000 to 80,000 children without parents will cross the border this year in what the White House has called an 'immediate humanitarian crisis.'
To help relieve crowded facilities in Texas, undocumented immigrants are now being sent elsewhere to be processed.
But Zermeno said processing immigrants, rather than enforcing the borders, is only making the situation worse.
'My concern is they are going to be eating in the same holding cells as someone sitting 5 feet away using the bathroom,' he said.
Murrieta Police Chief Sean Hadden said he was told to expect 140 immigrants every 72 hours, with the next group scheduled to arrive on Friday. He encouraged the public to attend a town hall meeting Wednesday evening.
Intense debateThe furor in Murietta illustrated the conflict between protecting the borders and the safety of families.
'If these children were from Canada, we wouldn't be having this interview,' immigration rights advocate Enrique Morones told CNN.
'The parents have had enough. They are saying, 'If I don't send my child north, they are going to die.''
The mayor of Murrieta, Alan Long, had urged residents Monday to protest the decision to move undocumented immigrants to the area, the Los Angeles Times reported.
He spoke again Tuesday at a Murrieta City Council meeting, thanking police and others.
'Please remember these are human beings that are fleeing the violence in their home countries,' Long said. 'The problem is that they need to come into this country the legal way.
Protester Ellen Meeks said the country's identity has eroded with influx of undocumented immigrants.
'I just wish America would be America again because it's not, and it's not just pointed to the Hispanics,' Meeks said. 'Everybody needs to go through the legal ways.'
The next group of 140 undocumented immigrants are expected to arrive in Murietta on the Fourth of July.
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CNN's Stephanie Elam, Rosalina Nieves, Traci Tamura and Greg Morrison contributed to this report.
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