NEW ORLEANS - Officials say a New Orleans man indicted on child pornography charges tried to destroy his laptop as authorities knocked on his door with a warrant. 

33-year-old Dwight Joseph Jr. is accused of possessing images and videos depicting sexual exploitation of children. He is also accused of failing to register as a sex offender. 

Polite's office says because of a 2005 conviction in Pennsylvania, he faces between 10 and 20 years in prison on the new charges.

Joseph says he attempted to destroy the laptop when authorities searched his house Sept. 9 because he was a sex offender and wasn't supposed to use a computer. 

Joseph was indicted on Tuesday. It isn't clear if the man has an attorney.