Four people have been arrested after a three-year-old boy fell from a window in Southampton.

The child was injured and taken to hospital at around 6.35pm on Wednesday after falling from a property in South Front, near Hoglands Park.

Residents say he fell from a top storey window, and landed in front of the window of a ground floor flat.

Two women, 26 and 45, and two men, 29 and 45, have been arrested on suspicion of assault/ill-treat/neglect/abandon a child/young person.

Residents of the three-storey block of council-run retirement flats spoke of their shock at the incident.

Police outside South Front, Southampton on September 5Police outside South Front, Southampton on September 5 (Image: Newsquest)

Iona Leach, 70, described seeing a fleet of emergency vehicles rush to the scene as it unfolded.

"There were two police cars in the park to make space for the helicopter, four cars in the road and two ambulance vehicles,” she said.

Ms Leach added: “I heard them all racing down the road but it happens a lot. I went out the front and the boy fell in the front of a woman’s door.

"She saw him land face down.

"Emergency services were there for a long time. Our windows only open a little bit, then open out wide when you turn them the other way.

"It was horrible. People couldn’t believe it was a child. I just hope he is alright."

READ MORE: Boy, three, seriously injured after falling from flat window

The air ambulance was also called and landed at nearby Hoglands Park.

Jan Hunt, 72, returned home on Thursday morning to hear the news.

She said: “He was a lovely little boy; I saw the family in passing.

“Nothing has happened like this, we’re all OAPs.

“Oh, it’s awful. I never expect it to be a child, especially this lovely boy. I am gobsmacked.”

Police officers remained on the scene until around 1pm on Thursday.

A Hampshire Constabulary spokesperson said: "It was reported that the boy had fallen from a window.

“He has been taken to hospital where he remains in a serious condition.

"Police attended and remain at the location at the current time carrying out enquiries into the circumstances of the incident."

They added: "All four remain in police custody at the current time.

"Anyone who was in the area at the time and saw what happened, or anyone with any information that may assist our enquiries, is asked to call 101 quoting the reference number 44240380147."