Meanwhile, in Stormont today, members of the Assembly paid tribute to the Constable Philippa Reynolds
The DUP's Gregory Campbell tabled the matter of the day, saying his prayers were with Constable Reynolds' PSNI colleagues and her family.
Justice Minister David Ford said Constable Reynolds died doing the job "she was so enthusiastic about".
Sinn Fein's Mitchel McLaughlin said the death highlighted the danger police officers faced on a daily basis.
Meanwhile, the PSNI commander in Derry has asked people to allow police get on with doing their job.
Chief Superintendent Stephen Cargin told Highland Radio News that Constable Reynolds became a police officer to serve the community, and the best tribute to her would be to allow the PSNI continue in that work.............