Oakland County Sheriff Michael Broussard has confirmed to CNN that the parents of Oxford High School shooter Ethan Crumbley failed to turn themselves in after charges were announced against them and they have stopped communicating with their lawyer, who assured authorities she would arrange for their arrest if they were charged.

Broussard confirmed that the FBI and U.S. Marshal Service are involved in the search.

"Oh, we have, yeah, a host of detectives out, including our partners with the FBI and the U.S. Marshal Service, my fugitive apprehension team." he told CNN's Victor Blackwell. "Like I said, if they think they're going to not come with their attorney but going to run, we're going to remedy that."

He also confirmed there has been no communication whatsoever with them from the beginning.

Also, he had a warning for the public: They may be armed.

"I would not encourage anybody to approach them," he warned. "I think it would be unlikely, but we're not going to take that chance. We're going to go get them."

We will update this post with any more news as it breaks.

UPDATE: They may be driving a 2021 Kia Seltos, Michigan plate #DQG5203

UPDATE 2: Here's a clearer picture of them:

UPDATE 3: The lawyer for the parents says they left to hide in a safe place (as if a white enclave suburb in Detroit is not one of those) and will return to turn themselves in. The sheriff sees it differently and says they're still fugitives.

UPDATE 4: It doesn't sound like they were just late to check in...

UPDATE 5: Their lawyer admits they haven't spoken with them since last night.

UPDATE 6: Anyone want to take bets they’re in Canada by now? Grabbed $4,000 from an ATM and turned their phone off.