Police in Belfast have released images of people they want to question about recent riots in Belfast. Pictures of the suspects were posted on the PSNI website as part of a major investigation into summer unrest.

Detectives from an investigation team codenamed 'Operation Titan' are appealing for public help in identifying the suspects.

90 people have already been arrested as part of the probe and 66 have been charged.

Detective Superintendent Sean Wright said the investigation has received strong support from the public.

"There are people out there who will know the identity of these 18 people who I am looking to speak to. I am confident that those people will come forward with that information. It is vital that we all send out a message to those involved in public disorder that such behaviour will not be tolerated" he said.

The PSNI wants to speak with these individuals

The senior detective also appealed directly to those featured in the images to contact his team.

"I would ask anyone who believes one of the images is of them to contact us immediately in order to help us with our enquiries" he added.

The Operation Titan team are investigating a broad range of offences including the attempted murder of police officers, blast bomb attacks on police, hi-jackings, rioting throughout the Greater Belfast area, breaches of Parades Commission determinations and unlawful protests.

The PSNI have also tweeted about another of their team who was injured in the weekend violence:

Dark, a public order dog struck with an iron grating during Fridays disorder. He needed 7 stitches to his leg. pic.twitter.com/ysoJEFNkzy

— PSNI (@PoliceServiceNI) August 13, 2013