Police are amping up their presence in various parts of the country, following gang activity

A Gang Conflict Warrant is in place across Hawkes Bay, giving officers special powers to search vehicles of suspected gang members and seize weapons.

It's due to two gang-related incidents this week believed to be linked to the Mongrel Mob and Black Power.

One of the incidents - an alleged assault in Hastings left two young people fighting for their lives in hospital.

Police are also increasing their presence around Christchurch after an unsuccessful attempt to start a fire at a local gang pad on Cuffs Road.

On Tuesday police also said they were extending a Gang Conflict Warrant to cover the entire Manawatu area.