Merseyside Police says a man, 18, arrested over an incident yesterday afternoon in Stadt Moers Park has been detained under the mental health act.
Police were called to West View at around midday after a woman was stabbed in the park in Huyton. She was taken to hospital where she remains in a stable condition.
The 18-year-old was arrested on suspicion of attempted murder a short time later.
Anyone who may have witnessed the incident, or who has any information, is asked to contact Knowsley CID by calling 101 or Crimestoppers, anonymously, on 0800 555 111.
Fifteen people have been arrested for drugs offences after police in Merseyside raided 17 properties today.
The force's Matrix Serious Organised Crime team targeted suspects in Old Swan, Liverpool city centre and Huyton as part of a 12-month long operation.
Searches continue at the locations involved.
A young man who's become an internet sensation thanks to his piano playing says he's shocked at what's happened. John Riley, who's from Huyton , was filmed playing in Liverpool. The footage was posted online and went viral. John, who works as a hospital cleaner, told Granada Reports he can't believe the response.
John gave a special performance for Granada Reports.
Police have arrested a man after a pension was seriously injured after a crash in Huyton last night. Officers discovered the 71 year old man on Manor Farm Road at about 6pm following reports of a motorbike collision. He has been taken to hospital where his condition is described as serious.
A short time later officers arrested a 24-year-old man on suspicion of causing serious injury by dangerous driving and failing to stop. The area has been cordoned off whilst collision investigators carry out forensic examinations.
A man's in a critical condition after he was discovered with head injuries on the M62. Police were called to the slip road at J5 Huyton, Liverpool bound at around 2:35am and found the 22 year old.
The injured man is believed to have been a passenger in a black Hackney cab when the incident occurred. The taxi driver is assisting officers with their enquiries. No-one has been arrested.
A full investigation into the incident is underway. The Liverpool-bound slip road remains cordoned off at this time whilst forensic examinations are carried out. The main carriageway of the M62 is unaffected.
Three men have been charged after a firearms and drugs raid in Huyton on Merseyside on Saturday.
They are all due to appear at Liverpool and Knowsley Magistrates Court this morning.
Three men have been arrested after firearms, ammunition and what is believed to be cocaine and heroin were seized at a house in Huyton in Merseyside.
Merseyside police say there were three handguns among the items recovered.
The men aged 27, 25 and 21 are being questioned.
Parents fighting to save school in Huyton are marching on Liverpool's Metropolitan Cathedral to hand in a petition.
Christ the King School opened just 4 years ago it was the first of 7 new secondary schools labelled specialist "centres of learning" by Knowsley council.
But they plan to close it in August.
Former prime minister Lord Wilson of Rievaulx will be honoured with a memorial stone in Westminster Abbey.
Harold Wilson, who died in 1995 aged 79, was MP for Ormskirk for nearly five years, and MP for Huyton for 33 years.
He was prime minister from 1964 to 1970 and from 1974 to 1976.