"The individual responsible for the attack yesterday, Hadi Mattar, has now been formally charged with Attempted Murder in the Second Degree and Assault in the Second Degree," Chautauqua County District Attorney Jason Schmidt said in a statement on Saturday.

"He was arraigned on these charges last night and remanded without bail," the statement added.

(Reporting by Kanishka Singh and Rami Ayyub in Washington)