Lancaster police say the three were attacked near a bank and a restaurant in Lancaster's Park City Center. Police Chief Keith Sadler says the groups had an ongoing dispute.
By the time police arrived in about ten minutes, the attackers had fled. No arrests have been made, but police say they are following leads to try to find the attackers.
Information from: Intelligencer Journal, http://www.lancasteronline.com/pages/paper/sundaynews/