Dutch police have released a video of two hooded figures ransacking Rotterdam's Kunstahl museum. Within minutes, a cache of seven masterpieces were removed and the thieves disappeared. Police arrived five minutes later after the alarm was triggered.

The footage was released in the hope of generating tips.

Meanwhile, the Kunsthal has defended its security as adequate even though no night security guards were on duty. Over $100 million worth of art was taken last week, inlcuding works by Matisse, Monet and Picasso.

The museum has described the theft as a "nightmare." The stolen works were on loan from the Triton Foundation Collection, and include:

1. Pablo Picasso: “Tête d’Arlequin”

2. Henri Matisse: “la Liseuse en Blanc et Jaune”

3. Claude Monet: “Waterloo Bridge, London”

4. Claude Monet: “Charing Cross Bridge, London”

5. Paul Gauguin: “Femme devant une fenêtre ouverte, dite la Fiancée”

6. Meyer de Haan: “Autoportrait” (c. 1889 – ’91)

7. Lucian Freud: “Woman with Eyes Closed” (2002).