Elena Maria Dinu, 30, was reported missing by police on the morning of April 15.
Taking to Twitter at 11.21am, the force said: "Elena Maria DINU age 30yrs #missing from #Isleworth, we need your assistance to find Elena.
"Please call 101 quote ref 17MIS013958.
Anyone with information relating to the whereabouts of the 30-year-old should call police on 101, stating 17MIS013958 as a reference.
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