Four men and two women have been arrested over the alleged sexual abuse of two young girls in Blackpool.
Lancashire Police said the alleged victims, aged seven and 10, may have been abused "over a number of years" and have been taken into care.
The arrested men - aged 52, 40, 39, and 37 - and two women - both aged 31 - have been released on bail. All are from Blackpool.
Police said inquiries were continuing and further suspects were being sought.