Three men dressed in black entered the Castelvecchio museum in northern Italy at the evening change of guard on Thursday, tying up and gagging the site's security officer and a cashier before nabbing the paintings. Photo: Ugo franchini/Wikipedia.org.

ROME (AFP).- Masterpieces by Rubens and Tintoretto were among 15 artworks stolen 'to order' by masked robbers from a museum in Verona, the city's mayor said Friday. 

Three men dressed in black entered the Castelvecchio museum in northern Italy at the evening change of guard on Thursday, tying up and gagging the site's security officer and a cashier before nabbing the paintings. 

Their haul included "Portrait of a Lady" by Flemish Baroque painter Peter Paul Rubens and "Male Portrait" by Venetian artist Tintoretto, as well as works by Pisanello, Jacopo Bellini, Giovanni Francesco Caroto and Hans de Jode. 

The museum told art investigators the works were worth an estimated 15 million euros ($16.05 million), adding that it looked like the job had likely been masterminded by a private collector. 

"Someone sent them, they were skilled, they knew exactly where they were going," mayor Flavio Tosi said, adding that 11 of the paintings stolen had been masterpieces while others were more minor works. 

Roberto Bolis from the council's press office said the museum had 24-hour security but the robbery had been planned so that the thieves arrived after the building emptied but before the alarms had been activated. 

"We don't yet know if they were armed, or whether they took the security officer's weapon," he said, adding that both the guard and cashier were in shock and were being debriefed by investigators. 

'Robbers' brutality' 
"They tied up the security officer as well and took his keys so they could get away in his car," he said. 

One of the men watched over the hostages while the other two raided the exhibition rooms. 

"It was only once they were able to untie themselves that the alarm was raised," Bolis added. 

Mayor Tosi told journalists the security officer thought the robbers "appeared foreign, based on the few words they let slip, though they did not speak among themselves at all". 

The museum is housed in a 14th-century castle but investigators said the security system was state-of-the-art. Footage from the 48 cameras installed in and around the premises has been handed over to police. 

The museum's director Paola Marini described the theft as "an immense loss". 

Some of the paintings were removed from their frames, others no. A work by Italian Renaissance painter Guilio Licinio, 'The Conversion of Saul', was discarded, damaged, in a corner. 

"The damage to the Licinio, which was near the Tintoretto painting, is not serious. It will be easily restored. But it demonstrates the robbers' brutality", Marini said. 

Italian art critic Vittorio Sgarbi told Rai News he "wouldn't rule out it being a jihadist act, because this theft is a real mutilation of a museum... a real disaster for Italian art". 

"Only an idiot would steal such similar paintings which are unsellable, and this makes you think that it was a theft to ask for a ransom or a jihadist act," he said, slamming it as "one of the most serious thefts of Italian art in history".  By: Ella Iide © 1994-2015 Agence France-Presse

The list of stolen works is as follows:

Antonio Pisano, known as Pisanello, Madonna and Child, called Our Lady of quail, tempera on panel, 54 × 32 cm, inv. 164-1B0090 - value: € 4,000,000.

Jacopo Bellini, Saint Jerome the Penitent, tempera on panel, 95 × 65 cm, inv. 876-1B0306 - value: € 2,000,000.

Andrea Mantegna, Holy Family with a holy, tempera on canvas, 76 × 55.5 cm, inv. 855-1B0087 - value: € 4,000,000.

Giovanni Francesco Caroto, Portrait of young man with children's drawings, oil on panel, 37 × 29 cm, inv. 5519-1B0130 - value: € 2,000,000.

Giovanni Francesco Caroto, Portrait of young monaco Benedictine, oil on canvas, 43 × 33 cm, inv. 1407-1B0142 - value: € 200,000.

Jacopo Tintoretto, Madonna breast feeding, oil on canvas, 89 × 76 cm, inv. 1285-1B1623 - Value: € 500,000.

Jacopo Tintoretto, Transport Ark of the Covenant, oil on canvas, 28 × 80 cm, inv. 263-1B0227 - value: € 100,000.

Jacopo Tintoretto, Feast of Belshazzar, oil on canvas, 26.5 × 79 cm, inv. 264-1B0229- value: € 100,000.

Jacopo Tintoretto, Samson, oil on canvas, 26.5 × 79 cm, inv. 265-1B0228 - Value: € 100,000.

Jacopo Tintoretto, Judgment of Solomon, oil on panel, 26.5 x 79.5 cm, inv. 266-1B0230- value €100.000.

Circle of Jacopo Tintoretto, Male portrait, oil on canvas, 54 × 44 cm, inv. 44381-1B4013 - value: € 150,000.

Domenico Tintoretto, Portrait of Marco Pasqualigo, oil on canvas, 48 ​​× 40 cm, inv.6707-1B0158 - value: € 500,000.

Workshop of Domenico Tintoretto, Portrait of a Venetian admiral, oil on canvas, cm 110 × 89, inv. 1602-1B0710 - value: € 100,000.

Peter Paul Rubens, The Lady of licnidi, oil on canvas, 76 × 60 cm, inv. 1779-1B0166 - value: € 1,500,000.

Hans de Jode, Landscape, oil on canvas, 70 × 99 cm, inv. 6275-1B0685 - value: € 200,000.

Hans de Jode, Sea port, oil on canvas, 70 × 99 cm, inv. 6273-1B0680 - value: € 200,000.