At least 24 California youngsters and 16 parents were detained in Afghanistan after traveling for a summer vacation.

A total of 40 people are from Cajon Valley Union School District, a school district in El Cajon, California. Since the Taliban assumed power, it’s unclear whether the students and their parents have been located, Washington Examiner reported.

The Cajon Valley Union School District superintendent, David Miyashiro, said the families traveled to Afghanistan on special visas for U.S. military service and are considered allies by the Department of Defense. According to the Daily Caller, the district has provided government officials with information to assist in the search for the stranded American travelers.

Miyashiro had told board members he met with Rep. Darrell Issa, a California Republican, to address the situation.

‘”Congressman Issa and his staff are working diligently to determine the facts on the ground, any bureaucratic barriers that can be removed, and the best ways to help those stranded leave Afghanistan and return home safely,” a spokesperson for Issa said. “We won’t stop until we have answers and action.”

According to Cajon Valley School Board President Tamara Otero, students and parents planned to fly out of Afghanistan but could not reach the airport.

“The biggest concern is that the Taliban closed the airport,” Otero said. “We are so worried about our students that are stuck there. We’ll do the best we can to get them out.”

Jo Alegria, a member of the Cajon Valley School Board, said the district is assisting the misplaced Californians in obtaining correct documentation to accelerate their return home.