Following the murder of Irish journalist Lyra McKee, Northern Ireland police are asking families to urge relatives to leave violent dissident groups.

Deputy chief constable Stephen Martin, who was speaking at a press conference about the shooting of 29-year-old Lyra McKee, said violence was “out of step with the wishes not only of the people of this city, but the people of this island.”

He asked the public to “turn something good from last night’s appalling events” and ask their family members not to take part in violence, the Daily Mail reports.

Read More: Local fury in Derry against dissident IRA killers who shot journalist

Martin said: “As well as making an appeal today for people to come forward with what they know to assist the investigation, I have another appeal today.

“There are people in this city who will know the people they love are involved in organizations like the New IRA. I would urge those people to have conversations in their home, in their family space, in Lyra’s memory.

“And to urge the people they love to step away from such violence and to step away from such organizations, and to recognize how out of step they are with the wishes not only of the people of this city, but the people of this island.

“We all want to live in peace. We all want a better future for our children, and last night’s actions are just so out of step with what all of us want.

Read More: New IRA murdered journalist during Derry riots

“So I would urge people, in Lyra’s memory, have those conversations. Let’s turn something good from last night’s appalling events.”

He added: “There are people in this society who can have those conversations and try to get people to step away from those organization,” he said.

“People are entitled to desire to retain a link with the United Kingdom. People are entitled to pursue a united Ireland. Do it through politics, do it through discourse.”

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Police van parked near graffiti which says 'IRA are done' and 'Defeated Army' in Derry, Northern Ireland.Charles McQuillan/Getty Images