Two men are in hospital after being shot when they answered the door of their home in a town in Bedfordshire late on Tuesday night.
Police went to Ashton Road, Luton, at 2330 GMT and the two men, who are 26-year-old students, were taken to Luton and Dunstable Hospital.
The men's injuries are not life threatening, a police spokesman said.
The road in the residential area half a mile from Luton town centre has been cordoned off as detectives investigate.
People are advised by police to avoid the area.