The PSNI has revealed that a number of people have come forward to give voluntary statements about the murder of Belfast man Robert McCartney.
The 33-year-old father-of-two was beaten and stabbed to death outside a pub in the city on January 30, allegedly by senior IRA members.
The killing has led to a backlash against Sinn Féin among nationalist communities in the North, with the McCartney family accusing the republican movement of shielding those responsible and intimidating witnesses.
Sinn Féin has responded by suspending seven of its members amid allegations that they were involved and by encouraging anyone with information to come forward.
Speaking about the ongoing investigation today, PSNI Detective Superintendent George Hamilton said 80 CCTV tapes had been examined, 20 houses had been searched and 10 people had been arrested.
He did not say how many had come forward to make statements voluntarily, but it is believed to be around 30.
Mr Hamilton added that if people did not want to approach the police, they could provide information via the Police Ombudsman.