Passenger Alex Azar posted photos of the stalled lines at San Diego International Airport Monday.
Stranded travellers posted photos on social media of long lines at John F Kennedy International Airport in NY and at Hartsfield-Jackson Atlanta International Airport.
An outage hit the Customs and Border Protection's (CBP) computer systems and left worldwide travellers waiting in long lines at airports throughout the U.S. last night.
Long lines of people waiting to go through customs at Miami International Airport due to a reported computer issue. That power outage was caused by a fire that broke out beneath the airport, officials said.
As of Monday at 9:30 p.m. airport operations returned to normal with fewer delays. All airports are now back on line. Acting Port Director Carlos Rodriguez of Hidalgo/Pharr/Anzalduas Port of Entry said CBP officers "continue to make significant narcotic seizures by combining their experience with the use of technology and other available tools to accomplish the CBP mission".
Kerala doctors observe strike against Centres' bill
Bill, which was tabled at the Indian parliament last week, is likely to come up for discussion on Tuesday. However, emergency and critical services would continue.
The disruption was not thought to be "malicious in nature", CBP said.
"CBP officers continued to process global travellers using alternative procedures at affected airports".
"During the technology disruption, CBP had access to national security-related databases and all travelers were screened according to security standards", CBP said in a statement.
"Everyone's running, they're flustered", Jason said.