Police in Hawke's Bay say they remain in frequent contact with gang leaders following four arrests over the weekend.

The charges include possession of meth and offensive weapons, after violence this week in Hawke's Bay.

The charges include possession of meth and offensive weapons, after violence this week in Hawke's Bay.

Extra police sent to region after four people injured in two separate gang-related incidents.

Extra police sent to region after four people injured in two separate gang-related incidents.

Police said four people remain in custody after the "stunt," which coincided with the US president's arrival in the UK.

It comes as extra police have been deployed to Hawke's Bay and a gang conflict warrant was put in place following two serious assaults.

Police say they have been engaging with the event's organisers to limit public disruption and ensure any activity remains lawful.

Police made multiple arrests at a student-led demonstration in Novi Sad on Friday night, which descended into violence following a police...

Police made multiple arrests at a student-led demonstration in Novi Sad on Friday night, which descended into violence following a police...