Alaska Airlines advised passengers to check their flight status before traveling to the airport

Alaska Airlines said it had grounded its flights at all airports on Thursday evening due to an unspecified technology outage affecting its operations.

Alaska Airlines advised passengers to check their flight status before traveling to the airport

The ground stop also hit Horizon Air, which is operated by the airline.

Alaska Airlines late Thursday announced it was "actively restoring operations" after issuing a ground stoppage due to an IT outage.