The Duke of Cambridge has arrived at Greater Manchester Police HQ to meet officers who were among the first to respond to the bombing.
Prince William met Chief Constable Ian Hopkins as he arrived at the headquarters on a visit to the city on Friday morning.
He is expected to speak to police officers who were involved in the response to the May 22 attack at Manchester Arena.
The Duke will hear about the force's immediate response to the bombing, which killed 22, and how officers dealt with issues more widely across the city in the days that followed.
The Duke spoke to some of the first responders on the scene, including Pc Michael Buckley, 47, who was off duty on the night of the bombing and waiting for his daughter Stephanie, 15, who had been at the Ariana Grande concert.
Mr Buckley tended to the injured in between trying to contact his daughter, who suffered concussion and some crush injuries in the attack.
He said: "I eventually met her in a hotel in the early hours of the morning.
"She just ran to me and grabbed hold of me but I couldn't hold her because I was covered in other people's blood.
Speaking about the scene in the arena, he said: "When I walked into the foyer of the arena it was absolute devastation, there were people screaming, others crying and others making no sound at all.
"I knew my daughter was in there somewhere."
Mr Buckley said the Duke asked him about the incident.
He added: "He was asking if we were getting enough support.
"It's nice that he took the time out to come and show us what we did is appreciated."
William also spoke to Christopher Jenkins, 29, a PCSO who was off duty on the night of the bombing but he lives close to the arena and was one of the first on the scene.
Mr Jenkins said: "It was absolute chaos. People were screaming and running in different directions.
"I was just trying to feed back to communications as much as I could."
He added: "Prince William was asking us about what happened. He's a good lad.
"He was showing us respect and showing us gratitude for what we did."