Three men were airlifted to hospital after a horror stabbing on Formby beach reportedly involved an axe and a samurai sword.
Police and paramedics descended on Formby beach at around 7.10pm on Sunday to reports that three men had been stabbed.
A witness told the ECHO that a man was attacked with an axe and a samurai sword at the National Trust site.
It came on what was one of the hottest days of the year so far, with many families flocking to the beach to make the most of the Bank Holiday sunshine.
People were reportedly asked to leave the beach as police closed off the area and everybody leaving the beach was asked to give their details.
There was also a heavy police presence on nearby Victoria Road, known as 'Millionaire's Row', due to the amount of millionaires and Premier League footballers that live there.
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Detectives investigating the incidents believe they are linked but are "keeping an open mind as to the motives behind them."
A witness told the ECHO : "The lad who was losing the fight pulled out an axe and hit the other lad with it. His mate then pulled out a samurai sword and used that too. It was bad."
Merseyside Police said they will be patrolling the beach after the "horrific incident" and are urging anyone who witnessed what happened to come forward.
Detective Superintendent Mark Baker said: "At this early stage we believe that these incidents are linked, but are keeping an open mind as to the motives behind them.
"However, we know the community of Formby and beyond will be alarmed to hear about what has happened and will share our determination to find those responsible and remove them from the streets. Officers remain at the scene and are available to support any residents looking for information or support.
"I know that there were a number of people on the beach this evening, and I'd like to urge anyone who saw what happened to come forward and help us to identify the offender as soon as possible.
"It is appalling and sad that on a sunny day like today when people have been out enjoying themselves we are patrolling our beaches after such a horrific incident. Knife crime has no place whatsoever in our communities and we're doing everything we can to bring the offender to justice."
"You can pass information via Merseyside Police's social media desk @MerPolCC on Twitter or 'Merseyside Police Contact Centre' on Facebook with reference 978 of 30/05. You can also contact the independent charity Crimestoppers anonymously on 0800 555 111 or via their online form at: https://crimestoppers-uk.org/give-information/give-information.