A young boy was taken to hospital after being attacked by a large family dog.
Police and ambulance services were called after the five-year-old was injured by the American Bulldog-type animal.
He was treated at the scene before being taken to Alder Hey Hospital where his condition was described as stable.
The incident happened at an address on Firbank in Skelmersdale at around 5.30pm on Thursday March 2.
The dog was secured inside the property and has since been put down.
Lancashire Police has now launched an investigation into the full circumstances and the dog owner is co-operating fully with officers.
Anyone concerned about a dog or wanting more information and advice can visit www.lancashire.police.uk/help-advice/safer-communities/anti-social-behaviour/dangerous-dogs/ or the Dogs Trust’s website at www.dogstrust.org.uk/help-advice/