More than 40 new tips streamed in from the public as a result of the show, police spokesman Joost Lanshage said Wednesday, adding that it's not clear if the thief acted alone. Police are also seeking information about a white van shown on footage driving past the museum.
The 25-by-57-centimeter (10-by-22-inch) oil-on-paper painting shows a person standing in a garden surrounded by trees with a church tower in the background.
"It looks like they very deliberately targeted this one Van Gogh painting," another police spokeswoman, Maren Wonder, told the Opsporing Verzocht show in the Tuesday night broadcast.
The artwork dates to a time when the artist had moved back to his family in a rural area of the Netherlands and painted the life he saw there, including his famous work "The Potato Eaters," in mostly somber tones.
Wonder said investigators want to hear from any potential witnesses who saw the thief arrive outside the museum on a motorcycle. She also wants museum visitors to share with police any photos or video they took in the museum in the days before it closed down, to see if anyone was casing the museum before the theft.
"People can help if they now realise that another visitor was behaving suspiciously," she said. "It would be very helpful if visitors to the museum have photos or video recordings with other people in them."
- AP