If your passport containing a valid U.S. visa is lost or stolen, please report it right away to the Embassy. The steps you should take are:
Step 1: File the appropriate report with the police in the jurisdiction where the passport was lost or stolen.
Step 2: Fill out the form “Lost or stolen passport with visa”.
Step 3: Send a copy of the police report and the “Lost or stolen passport with visa form” to BogotaVisaPerdida@state.gov
The Embassy cannot reactivate visas reported lost or stolen. If you recover the passport with the U.S. visa you previously reported lost or stolen, you will not be able to use that visa.
You will need to apply for a new visa if you wish to travel to the United States.