A sushi restaurant was forced to close indefinitely after an early morning fire caused smoke damage inside, according to owners.

Sushi Yako, located on 3501 Old Seward Highway, was closed Saturday as its owners worked with an Anchorage fire investigator to determine the extent of the damage inside and potentially a cause of the fire, according to assistant fire chief Alex Boyd.

An Anchorage fire dispatcher stated the fire was reported at 3:36 a.m. when smoke was seen coming from the building. The first crew arrived within minutes, but the fire was not considered under control until almost an hour later at 4:22 a.m., according to the dispatcher.

Owner Chong Kim said it appears that the fire began in the sushi bar area.

No one was hurt, but Kim said it is unclear when the restaurant will be able to reopen.

This is a developing story; please check back for updates as they become available. KTVA 11’s Eric Ruble contributed to this report.