A man is in "critical" condition in hospital today after a serious assault in Dungannon, Co Tyrone early this morning.
Police say a number of people were injured in a fight on William Street at around 2.20am but one man received serious head injuries.
The assault happened during after the altercation on William Street that involved up to 50 people. It is believed the victim received serisous injuries when he was attacked at the j unction of the Ballygawley Road and Newell Street in the town.
Streets in the town have been sealed off while police investigate the incident.
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Police have no definate lines of inquiry at this stage. Witnesses or people with information have been asked to contact the PSNI in Dungannon.