Westfield's mayor is warning residents after an uptick in COVID-19 cases in the town.

Mayor Shelley Brindle confirmed that seven people tested positive for the virus on Friday.

She tweeted that most of the cases were 17- and 19-year-olds. Three of the cases were associated with a party.

According to the tweet, the town expects more positive cases.

Brindle's tweet says: "Seriously. Save the beer pong for celebrating a vaccine."

Brindle also included a graphic reminding people that face coverings are required in outdoor spaces.