French President Nicolas Sarkozy called for a halt to early prison release for some pedophiles, expressing his anger at the high-profile alleged kidnapping and rape of a 5-year-old boy by a repeat sex offender who had been prescribed Viagra while behind bars.

After a meeting with several top ministers, Sarkozy said he had asked Justice Minister Rachida Dati to include the measure in a prisons law set to be presented in Parliament in November.

Sarkozy said the French were "very shocked" after the 5-year-old was kidnapped from his home in the northern town of Roubaix on Aug. 15 and allegedly raped by convicted pedophile Francis Evrard. The 61-year-old, convicted three times, was released from prison in July.

Working off a new kidnapping alert system that quickly went into effect, authorities found Evrard and the boy in a Roubaix garage about 12 hours after the child went missing, officials said.