A natural gas leak Wednesday afternoon halted light-rail train service for about an hour through downtown Minneapolis, Metro Transit said.

The disruption began about 1:20 p.m. and shut down the Blue and Green line trains between U.S. Bank Stadium and Target Field stations, the transit service said on Twitter.

Replacement buses were mobilized for a time, and the trains started running again about an hour later.

CenterPoint Energy spokeswoman Rebecca Virden said the small leak was near the Hennepin County Government Center in an aboveground regulator that controls gas pressure.

The gas dissipated into the atmosphere until the leak was repaired by 2:30 p.m.

The Armory, where many entertainment events are scheduled this week in connection with the Super Bowl, was briefly evacuated as a precaution.