Transcript for Nationwide outage at US custom stalls arrivals at major airports
We turn to the chaos that we talked about at major airports across the country. A nationwide outage crashing custom systems. Passengers waiting for hours after getting off international flights. As far as we know none of them pulled an Eva and got back on the plane. Stephanie Ramos is at Newark. How are the lines this morning? Reporter: It's much smoother this morning. Customs and border protection process about 350,000 passengers and crews at airports across the country every day. Yesterday the outage kept passengers in line for hours. Across the country long lines, frustration and confusion for travellers after U.S. Custom and border protection computers went down. We're at capacity. We will continue to debark as soon as space is available. R. Reporter: Check out these pictures of airports across the country. At major cities like Chicago and Philadelphia this was the scene. During the outage custom and border protection tweeting officers are working to process travellers as quickly as possible while maintaining the highest levels of security. Craig Johnson tweeted this from Dallas Fort Worth showing a massive line of weary travellers waiting to get to the custom's hall. In south Florida international travellers arriving waiting longer to get through customs. Everyone is kind of tired. We just came off a ten-hour flight. Reporter: Customs used alternative procedures. Everybody is pushing and shoving. It got a little crazy. I was in line for two hours. Reporter: A similar incident happened in January of 2018 on new year's day when their processing systems went down causing delays nationwide. A government official says right now there is no indication this was a malicious attack on the network. Cbp also says this only affected airports, not other ports of entry. This morning all systems are up and running. Eva? I'm sure those people are happy to hear that. Than, Stephanie.
This transcript has been automatically generated and may not be 100% accurate.