Police have been granted more time to question three people over the murder of an elderly man in Blackburn.
Albert Fielding, 89, was found dead by officers after a neighbour raised the alarm at Limefield Court, off Preston New Road, on Friday morning.
Two men, aged 39 and 46, and a woman aged 45, all from Blackburn, were arrested on suspicion of murder.
Lancashire police said officers now have until 2330 BST on Sunday to question them.
A post-mortem examination was due to take place on Saturday.
Detectives are appealing to anyone who saw Mr Fielding in the past few days to contact them.
Officers said he was last seen on Thursday and are urging his friends and family to get in touch.
Senior Investigating Officer, Det Supt Neil Hunter, said: "I am keen to speak to any friends or associates that knew Mr Fielding to come forward.
"I am also keen to hear from anyone who has visited his house recently. Their information could be vital as we piece together what happened."
He added: "I would like to reassure the public that we have a team of dedicated officers working on this investigation as we try to establish exactly what happened.
"Understandably this is a very difficult time for Mr Fielding's family and we have dedicated family liaison officers supporting them."