NY mayor won't tolerate police mistakes

New York mayor Michael Bloomberg has said the city will not tolerate police mistakes following the deaths of two unarmed people during raids.

Bloomberg was responding to questions about Alberta Spruill, a city worker who died of a heart attack when police mistakenly raided her Harlem flat on May 16, and Ousmane Zango, a West African immigrant who was shot by police in a storage warehouse last Thursday.