Seattle Fire rallied a full hazardous material response Wednesday morning and the building was briefly evacuated as reports of a possibly dangerous leak inside the Lost Lake diner turned out to be a lesser alarm.

SFD was called to the 10th Ave restaurant between Pike and Pine just before 7:30 AM to a report of a possible nitrogen leak in the venue’s kitchen. Liquid nitrogen leaks can be extremely dangerous as they quickly displace oxygen.

Arriving units learned the issue was likely limited to a carbon dioxide alarm and did not involve nitrogen. A hazardous material response crew made entry and confirmed the CO2 alarm issue.

The alarm was reported resolved and the building reopened.

E Pine was closed to traffic during the large Seattle Fire response.

There were no reported injuries.

$5 A MONTH TO HELP KEEP CHS PAYWALL-FREE

Subscribe to CHS to help us hire writers and photographers to cover the neighborhood. CHS is a pay what you can community news site with no required sign-in or paywall. To stay that way, we need you. Become a subscriber to help us cover the neighborhood for $5 a month -- or choose your level of support 🖤