Five Napoli fans were arrested amid disorder outside Anfield ahead of Wednesday's Champions League game against Liverpool, Merseyside Police confirmed.
A statement from the force said three Napoli supporters were arrested for violent disorder and another for affray, with a fifth arrested for breach of the peace at the turnstiles on Anfield Road.
Earlier in the day, Merseyside Police said a number of flags attached to flag poles were confiscated from supporters following reports fans had been seen carrying golf clubs.
"No golf clubs have been found," said a statement from the force posted to social media.
Last year, Liverpool fan Sean Cox was hospitalised after he was stabbed amid disorder outside Anfield ahead of a Champions League tie against Roma.
Simone Mastrelli pleaded guilty and was sentenced to three and a half years after Cox sustained serious head injuries in the attack.