Officers in Hounslow are seeking the public's help in finding 12-year-old George Whelan who has not been seen since Tuesday (January 10) afternoon.
A police spokesman told getwestlondon he was last seen between around 3pm.
"He got up to go to school and this was the last time his mum saw him," the spokesman said.
"He was last seen on January 10 sometime between 2pm to 3pm."
Hounslow MPS sent a message on Twitter just before 11am on Wednesday (January 11).
The message on Twitter read: "George WHELAN aged 12yrs is #missing from #Hounslow area.
"If you can help to find him, please call 101 quote ref 17MIS001543. Thank you."
If you have any information regarding the whereabouts of George please contact police via 101 and quote reference 17MIS001543.
Keep up to date with the latest news in west London via the free getwestlondon app.
You can even set it to receive push notifications for all the breaking news in your area.