A man shot and killed at least 18 people at a restaurant and a bowling alley in Lewiston, Maine, on Wednesday and then fled into the night, sparking a massive search by hundreds of officers while frightened residents stayed locked in their homes.

A police bulletin identified Robert Card, 40, as a person of interest in the attack that sent panicked bowlers scrambling behind pins when shots rang out around 7 pm. Card was described as a firearms instructor believed to be in the Army Reserve and assigned to a training facility in Saco, Maine.