NICE, France (Reuters) - French police on Wednesday recovered two Impressionist masterpieces stolen from a museum in the Riviera city of Nice earlier this month. The priceless works, Claude Monet`s "Cliffs at Dieppe" from 1897 and Alfred Sisley`s "Lane lined with poplars near Moret" from 1890, were found in good condition on board a boat docked at the port of Saint Laurent du Var, near Nice. The paintings had been stolen from the Cheret Fine Arts Museum. The police said two men were in custody in the case. Also, museum curator Jean Forneris was formally placed under investigation by a judge last week. Forneris told police after the theft that the two men had broken into his home on September 21 and forced him at gunpoint to let them into the museum when it was closed. There, the suspects overpowered guards and tied up the staff members before fleeing in the curator`s car with the two paintings. Investigators have since discovered that one of the suspects was a friend of Forneris. The two suspects remained in custody on Wednesday while Forneris was released on condition he remain in contact with judicial authorities. The two works, which had been loaned to the museum by the state, are too well known to be easily resold, according to the Culture Ministry.