Police were called to the address in Ashington in the early hours of this morning, where they found the 20-year-old man with stab wound to the chest.
Three people have since been arrested on suspicion of wounding, and police are appealing for information about the incident.
The man is reported to be a in a critical but stable condition.
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Kerrie brings you Sunday night's forecast
A woman from Teesside on death row in Indonesia says she's starting to write goodbye letters to her family in preparation for her execution.
It looks like, for a change, the best of the weekend weather (and the week ahead) is coming through on Bank Holiday Monday itself