Updated

PHOENIX (KSAZ) - After Arizona Governor Jan Brewer fired off a letter to President Obama, concerned about dozens of undocumented immigrants being dropped off at a Phoenix bus station, another bus load of immigrants arrived.

Early Tuesday morning FOX 10 saw a bus load of people dropped off by a bus with Department of Homeland Security markings.

The Greyhound spokesperson said that Arizona is the only state they're aware of that is getting bus loads of people.

The Greyhound bus station near 24th St & Buckeye has turned into a refuge for bus loads of immigrants being dropped off by DHS.

FOX 10 was told immigration officials are moving hundreds of undocumented workers caught in Texas who are from Central America to Arizona. DHS says they don't have the manpower to process them all.

Volunteers dropped off Powerade, diapers, and toys for the kids.

"I'm a mother with small children, I can't imagine how exhausted, tired, and scared the women are. So I just wanted to be able to help them in any way possible," said Ella Herrington.

A spokesperson for Greyhound said that up until a couple of days ago they were not given any notice that large groups of people were being dropped off. They say this had never happened before.

"We do not have an agreement of any kind with ICE or the U.S. Border Patrol. We recently established protocol with them which they now will inform us going forward several hours in advance before dropping off large groups of people to ensure we have the resources to accommodate them once they arrive," said Lanesha Gipson.

DHS officers were seen handing out water to families getting off the bus, Greyhound says they are also helping out. "Once they arrive we provide water and food for them, we also allow them to use phones to call family members so they can get tickets to travel," said Gipson.

Gipson said she wasn't sure if most of the immigrants were staying in Arizona or taking a bus to another location. Greyhound said they have been able to get extra drivers and buses to accommodate the increase in volume. They are also letting the immigrants stay at the station overnight. Gipson was unaware of anyone who had to stay multiple nights.

All the immigrants bused to Phoenix are supposed to report to a local ICE office at their destination within 15 days.

For more stories go to myfoxphoenix.com

Follow us on twitter.com/foxnewslatino
Like us at facebook.com/foxnewslatino