Police have said a suspect in a string of robberies attacked an undercover officer during a sting operation on Wednesday.

Lake County Sheriff's officials said Gary police officers were conducting an undercover investigation in the 3400 block of Maryland around noon, when a suspect attacked an officer.

Gary Police fatally shot suspect Shahaud Richmond during an undercover sting; his family disputes the account.

Newly released videos show a man attacking an undercover Gary police officer with a machete-like weapon earlier this week during an undercover sting, before police shot and killed the suspect.

Gary Chief Derrick Cannon said the suspect attempted to rob the undercover officer with a "machete-style weapon" when they met up for a staged sale.

Gary police said officers went undercover, pretending to be buyers with the goal of arresting a suspect. My 11-year-old walked less than a mile away from home. I was arrested and charged with reckless conduct.

A man was shot to death Wednesday afternoon by Gary police after allegedly attacking officers with a "machete-style weapon" during an undercover investigation, authorities said.

The Lake County Sheriff’s office says Gary police were taking part in what’s being called an undercover investigation on Maryland Street near East 34th Avenue just before 12:20 p.m. when they say a suspect attacked an officer with a machete.