A man remains missing after being seen to fall into the River Thames, detectives said.
An "extensive" police operation is under way to find two missing girls.
Fears have been expressed that the growing number of people being reported missing across Tayside could be linked to money worries.
Police officers in Tayside are dealing with an average of eight missing person reports every day.
A Scottish teenager reported missing after the Manchester terror attack is being treated for serious injuries in the city, while two other people are in hospital north of the border.
Police in Tayside are working on plans to pilot a scheme where GPS trackers could be fitted to the clothes of vulnerable people who are susceptible to going missing.
It's every person’s worst nightmare when a loved one goes missing.
The brother of a woman who was found dead in Edinburgh months after going missing from her London home is to make an appeal for information on the anniversary of her disappearance.