Two men aged 23 were arrested on suspicion of being concerned in the supply of a controlled drug and have been bailed.
Six men aged 19 to 22 were taken to hospital overnight from a house at Ripon Gardens in Newcastle. One of the men is critically ill. Police believe the six had taken a hallucinogenic drug.
More top news
Pictures of Beyoncé as she takes to the stage at Sunderland's Stadium of Light to launch her Formation world tour.
Blaydon MP Dave Anderson has backed his under-fire leader Jeremy Corbyn after 172 MPs gave him a vote of no confidence
Motorists are being warned that the A1 will be fully closed tonight as repairs continue after a sinkhole opened up in Gateshead