Party's over, spring breakers.

The city of Miami Beach has declared a state of emergency after thousands of maskless, hard-partying spring break people descended on the hotspot in the wake of fears of a dangerous surge in COVID-19 cases, reports said Sunday. 

Mayor Dan Gelber announced an 8 p.m. curfew for the city's "entertainment district" and a ban on shore-bound traffic for 72 hours as local officials evaluate their next move during an emergency City Council meeting on Sunday.

"We've got too many people and too many looking to act out while there's a pandemic going on. So we've got all this happening simultaneously, so it's become a tinder," USA Today quoted Gelber as saying.

Under the new curfew directive, authorities will block the Art Deco district in South Beach at 8 p.m., and all businesses within the restricted area are ordered to close, Interim City Manager Raul Aguila told reporters on Saturday.

Police will also shut down the highways leading in and out of the city overnight, Reuters reported.

Miami has been under a state of emergency for a year due to the coronavirus pandemic, the mayor said, noting that the "emergency powers" employed by Aguila to carry out the state of emergency are in addition to the pandemic-related SOE in Miami Beach.

An overwhelming number of people were blamed for the response. Aguila said the "crowds are in the thousands" and out of control.

The decision was made following weeks of unruly spring breakers clashing with police, reports said. People have damaged restaurants, fought in the streets, and gathered without face coverings or social distancing, police said.

Florida has already tallied 2 million COVID-19 cases and more than 33,000 fatalities. The state has long been loose on health restrictions that could curb the spread of the virus.