Police are investigating following the deaths of a woman and a boy in Bolton-le-Sands, Lancashire.
Pollice found the bodies of a woman and a boy and a man suffering from stab wounds at 11.40am today at an address on Lowlands Road.
The man has been arrested on suspicion of murder and has been airlifted to the Royal Preston Hospital where he is described as being in a serious condition.
A cordon is in place at the scene and a murder investigation has been launched.
Post mortem examinations to establish the causes of death will be carried out in due course.
Anybody with any information can contact police on 101 or Crimestoppers anonymously on 0800 555 111 or on-line at Crimestoppers-uk.org.