Close to the dance studio where three children were killed - and more injured - in the seaside town of Southport in the UK, a large group of protesters clashed with police.
Police say 22 officers were injured as vehicles were set alight and items were thrown towards a mosque close to the dance studio.
They say the violence was believed to involve supporters from the English Defence League, an English far-right, Islamophobic organisation.
Emotions are high as the community grieves after the attack at a Taylor Swift-themed yoga and dance workshop for six- to 11 year-olds, on Monday.
Those killed have been identified as Bebe King, aged 6, Elsie Dot Stancombe, aged 7, and Alice Dasilva Aguiar, aged 9.
Their families have posted tributes, saying: "no words can describe the devastation" and loss they feel.
A 17-year-old male has been arrested on suspicion of murder and attempted murder.
His name has not been released due to his age and the criminal proceedings underway.
After a flood of misinformation on social media on the suspect's identity, police issued a statement saying he was born in Cardiff, Wales.
They cautioned people against speculation as the investigation continues, which they said is not being treated as terrorism-related.
Britain's Home Secretary Yvette Cooper is calling for unity.
"This is about children and their families who will be grieving, and there are many other children who were involved yesterday, who will be facing great trauma as well. And this is a moment when it's not just the people of Southport who will be wanting to desperately come together to support their own. This is about all of us, not just across this House but across the whole country being there for the people of Southport and the families who have lost loved ones."
Ms Cooper says the issue of knives and knife crime must be tackled.
"This really has to be a moral mission for all of us and there is a wider debate that we will have on other days about some of those issues. For today, though, I think this is still about Bebe, Elsie and Alice. This is still about the families who are still waiting by the bedsides of their little children tonight and those across the community who will be thinking of them."
British Prime Minister Keir Starmer travelled to Southport to lay a wreath of flowers at the site of the attack, where a vigil of hundreds of people was taking place.
He was heckled and asked when he is going to do something about knives and about Muslims.
"How many more children Prime Minister? Are you going to do something? Time to change Starmer. Come on. Three dead. How many more children? When are you going to do something about Muslims? Bye Bye."
The Prime Minister ignored the heckler but says he is very worried about the incidence of knife crime.
"I'm absolutely determined that my government will get to grips with it. But today is not the time for politics. Today is the time to focus entirely on the families who are going through such pain and grief and on the wider community and of course, a times to say thank you to those that responded yesterday in the most awful of circumstances."
Mr Starmer says the attack has affected all in the UK.
"I think it touches a nerve with the whole country. It's awful to contemplate what happened, to hear for myself, the experiences of first responders, what they had to deal with. It's really hard to take in for anybody. It's not what any of them, came to work for. But of course, they're professionals, and they deal with it. I think about the families, the friends, the loved ones, those directly impacted, and of course, the wider community here. But, there's no pretending I think that anybody in the country is not untouched by what happened yesterday."
Reverend Martin Abrams is a hospital chaplain for Southport and Ormskirk Hospital Trust.
He presided over the vigil.
"The town of Southport has come together to stand in solidarity as a town with those who have had a life changing tragedy, and everybody who have felt the affect of that."
Sefton Mayor June Burns says the vigil is an important part of coming together during the grieving process.
"It's hard to find the correct words to say with such a dreadful, dreadful, horrendous time. When I went over there to lay some flowers, it hits you. It really gets you, you can't help but cry because of the outpouring of grief, the sadness, the fact that actually, we have to do that."
High-profile figures also shared messages of support.
American pop star Taylor Swift says she is "completely in shock" over the children killed and injured, while King Charles and Queen sent their heartfelt condolences, prayers and deepest sympathies to those grieving.
