A police SWAT team converged on an Amtrak station in Hammond Tuesday afternoon for what police later classified as a "prank."
The train left the Hammond station at 4:30 p.m., heading for New Orleans.
An Amtrak spokesman confirms police responded to a potential emergency onboard The City of New Orleans train in Hammond.
Dozens of law enforcement officers converged on the scene and sealed off the area.
Workers at nearby businesses were ordered to stay inside.
Amtrak spokesman Marc Magliari says police received a call indicating trouble on the train.
However, he says police responded and "no one was found in distress."
"This was investigated and nothing was found wrong," he said.
The train was held in Hammond for nearly 90 minutes, Magliari said.
Magiari says someone had called police, naming a person on the train was reportedly in distress.
However, he says police checked the train twice, and did not find anyone by that name.
"There is a situation on one of our trains there, but I don't know what that situation is," said Amtrak spokesman Cliff Black when reached as the incident first began Tuesday afternoon.
Black says a manifest shows 55 passengers are onboard.
The train was travelling from Chicago to New Orleans.