As a result, Ocean City has canceled its firework displays Published: Tags: Fireworks accidentally set off on beach in Maryland during setup Fireworks accidentally exploded on Sunday as workers prepared for one of two holiday firework displays in Ocean City, Maryland, NBC News reports. The Ocean City Fire Department said that what was originally called in as a vehicle fire at about 10:30 a.m. turned out to be an accidental fireworks discharge. Authorities report that employees with the fireworks company sustained minor injuries, but didn’t want to be transported to a hospital. No bystanders were hurt in the incident.