Labour GAIN Cleadon and East Boldon from the Conservatives on South Tyneside
A recount was ordered earlier.
It means there are now no Tory councillors on South Tyneside council.
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Officers were called to reports of a fire at an address on Tunstall Village Green. A 38-year-old man was arrested on suspicion of murder.
The teenager's body was found after a search was launched following reports a person had gone into the river near Toronto Bridge on Sunday.
Some flights between Newcastle International Airport and the Canary Islands have been cancelled or delayed due to a Saharan sandstorm.