I would like to pass on my heartfelt sympathies to the family, friends and colleagues of this officer.
We can only imagine the pain that they must be feeling. I hope that her injured colleagues make a speedy recovery.
This young woman's death in the line of duty serves to re-emphasise the dangers faced by the officers of the Police Service of Northern Ireland on a daily basis, as they put themselves in harm's way to protect the whole community. They deserve our full support.
More top news
Kauto Star, who won the King George VI Chase a record five times, has been put down, the Racing Post reports.
BBC will no longer be 'the home of the Olympics' after the IOC is swayed by a massive bid.
A tourist who ran into a hail of bullets to help save victims of the Tunisia massacre has given an emotional recount of the attack.