Police in Leeds have shared a heartfelt letter sent by a member of the public thanking them for their bravery.
The woman, called Christine, handed a card to West Yorkshire Police after the Manchester terrorist attack this week.
Officers - including extra armed units - have been deployed across Leeds to increase security and reassure the public.
"I came into Leeds today out of necessity. I have seen armed police in different areas and have said 'thank you' to some of them (just in passing - I don't want to distract them).
"I am somewhat of a dinosaur, so can't go onto social media to say a worldwide thank you. I just want to express my sincere thanks and appreciation to all of you. You put your lives at risk daily to protect members of the public such as me. Please pass on my thanks to all your colleagues, both armed and unarmed. You are all much appreciated. It is a very sad week. Please stay safe and I hope you all have very long, happy and healthy lives.
"Kind regards from Christine - very grateful member of the public."
A Deliveroo rider also posted a photo on social media showing the free bottled water he and fellow couriers had been delivering to police officers on duty during this week's heat wave. The water was donated by the Co-op on Kirkgate.