Lewiston Mayor Robert Macdonald holds a copy of a postcard sent to him asking that he help protect the city’s immigrant population from deportation.

LEWISTON, Maine (AP) — A Maine mayor says he was mistaken in warning the city’s immigrants about a postcard he received in the mail.

Lewiston Mayor Robert Macdonald originally said he was worried that the postcard “will spark fear within the immigrant community.” But he later said he read the postcard too quickly, and that there’s no cause for alarm.

The postcard described U.S. Immigration and Customs Enforcement agents coming to Lewiston to deport immigrants. But the postcard writer ends the note with a plea to protect the city’s immigrants.

Lewiston has a large Somali immigrant population.