Police were called to a peaceful vigil supposed to honour the memory of a man who tragically died in a crash after a "minority of youths" started fires.
A dispersal zone has been introduced in New Ferry, following reports of anti-social behaviour.
Police said a number of young people lit fires, daubed graffiti and were acting anti-socially at the vigil.
The force said the vigil began peacefully but "unfortunately" they received reports of crime.
Chief Inspector Jay Crellin said: “We understand that a gathering in New Ferry Park this evening started out as a peaceful vigil to remember a young man who was tragically killed in a road traffic collision yesterday.
“Unfortunately we received reports from local residents that a minority of youths attending engaged in anti-social behaviour including graffiti, criminal damage and lighting fires.
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"We understand the impact that such acts have on the local community and so we have introduced this dispersal zone to give us the powers we need to deal with this behaviour.”
The dispersal zone runs from 7pm today (Saturday) until 3am on Monday March 22.
Officers will be in the area to provide a visible presence and deal with any incidents.
Areas included in the zone include: Old Chester Road, Rock Lane West, New Chester Road, Bedford Road, Rock Ferry By-Pass, Bolton Road, Ellens Lane, Bromborough Road, Heath Road, the Village, Teehey Lane, Kings Road and Kings Lane.
The order comes under Section 34 of the Anti-Social Behaviour & Policing Act 2014, which gives police officers and police community support traffic officers powers to direct people they suspect are causing or likely to cause crime, nuisance or anti-social behaviour to members of the public to leave a designated area and not return for up to 48 hours.
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Under the legislation, officers have the power to seize any item, including vehicles, used in the commission of anti-social behaviour.
Should a person who has previously been directed to leave the area return, an offence would be committed, which they may ultimately be arrested for.
A spokeswoman for Merseyside Police added: "You can pass any information on anti-social behaviour via our social media desk @MerPolCC on Twitter or 'Merseyside Police Contact Centre' on Facebook with reference number 21000178773.
"You can also contact the independent charity Crimestoppers anonymously on 0800 555 111 or via their online form at: https://crimestoppers-uk.org/give-information/give-information. Always call 999 if a crime is in progress."
