It's understood a minibus and a lorry were involved in the crash
A statement from the PSNI has asked people not to share images taken at the scene of Thursday's crash.
"Police are aware of inappropriate photographs taken of the scene of the fatal collision in Aughnacloy being shared on social media and other platforms." Superintendent Mervyn Seffen, Mid Ulster District Commander, said: "Three people have sadly lost their lives in this tragic collision and our thoughts are with their family and friends today. Do not add to their distress by viewing or sharing these images."
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