Vandals have desecrated four Muslim graves in a cemetery in northern France, painting a swastika on one and the words "Adolf Hitler" on three others, French police said on Wednesday. Dalil Boubakeur, president of the French Council of the Muslim Faith and rector of the Grand Mosque in Paris, denounced the attack as a "disgraceful profanation" and urged the authorities to track down those responsible and punish them severely. The desecration, in a suburb of the northern city of Lille, was the latest in a series of attacks on Muslim, Jewish and Christian property in France. On Monday, Muslim officials at the Grand Mosque in Paris had found a dozen swastikas and SS initials daubed in black paint over its outer wall.