KINGSTON — The Edmonds-Kingston ferry route returned to service just after 2 p.m., Dec. 1.

The service was out for about 30 minutes because of “operational constraints,” according to Washington State Ferries.

Both vessels will return to service with about 30-minute delays on both sides.

The original service alert was emailed at 1:37 p.m. No information into why the service was down was provided.