SUGAR LAND, Texas -

Two 7-year-old girls found themselves lost in a Fort Bend County neighborhood after they were put on the wrong bus at school.

The girls, Kacy and Saira, are in the second grade at Campbell Elementary in Greatwood.

"When the bus arrived and she was not on it, I asked where she was. The bus driver didn't know," said Katy Acosta, Kacy's mother.

Acosta told Local 2 the girls were accidentally put on the wrong bus and wound up about a mile away from their usual stop.

"She rode the bus through the route and at the end of the stop the bus driver informed her and Saira that they had to get off," Acosta said. "The girls proceeded to tell them they didn't know where they were, this wasn't their neighborhood and he said, 'This is the last stop, you have to get off.'"

"He kicked us off the bus," said Saira.

Saira and Kacy told Local 2 they were going to walk home but they didn't know the way, so they stopped a stranger for directions. The man noticed the girls were young and scared, and had his wife drive them back to the school instead.

Meanwhile, Acosta had no idea where her daughter Kacy was. When she didn't get off at her usual stop, Acosta went up to the school looking for answers.

"There was no sense of urgency at all," she said. "I regret that I didn't go with my mommy instincts and call the police."

For 30 minutes Acosta said she waited and worried.

"I didn't know where she was. It was very scary," said Acosta.

Acosta is thankful to the strangers who brought the girls back to the school safely but told Local 2 the bus driver should have done that. She's upset the girls were let off in a strange neighborhood and forced to fend for themselves.

"Obviously, I'd like to see policies and procedures put in place that something like this doesn't happen again," Acosta said.

It's unclear if the situation is being investigated by Lamar ISD. In a statement the district's executive director of communications, Mike Rockwood, said, "Federal law prohibits us from commenting on specific instances involving any student or employee. That being said, student safety is always our top priority. I can assure you all concerns from parents and students are taken very seriously and investigated accordingly. We have reviewed all parent concerns from this school year and have not found any evidence of a bus driver forcing a student off a bus."

Acosta isn't satisfied. She is planning a community meeting with other concerned parents who also want to see safety policies implemented.

"Honestly, I don't really feel confident that the same thing's not going to happen again," said Acosta.