An explosion rocked a crowded Manhattan neighborhood and injured 29 people, and a suspicious device discovered blocks away was safely removed early on Sunday.

De Blasio tried to calm any fears among nervous New Yorkers, saying the explosion had no terrorist connection and wasn’t related to a pipe bomb explosion earlier Saturday in New Jersey that forced the cancellation of a charity run.

De Blasio said:

“Now, I want to be clear: Whatever the cause, whatever the intention here, New Yorkers will not be intimidated,” the mayor said. “We are not going to let anyone change who we are or how we go about our lives.”