A few hours after the shooting at a suburban Detroit elementary school, the school was shut down and its students evacuated.

In the hours after that, there was no official word on a suspect, and police and the FBI are still investigating.

The shooting occurred in Easton, about 60 miles east of Detroit, about 25 miles from where the school is located.

There were no reports of injuries, but the city’s emergency management office said it was monitoring the situation and asked parents to keep their children home.

Detroit Mayor Mike Duggan tweeted: “We are not able to give a complete update at this time.

Please be advised of the following:”1.

We are currently in the midst of a very active police investigation and no suspects have been found.

“A man has been arrested in connection with the shooting, and an Amber Alert was issued.

Officials have said the shooter was armed.

A spokesman for the FBI’s Detroit office said they were investigating and would be sharing more information as it became available.

We will be sharing information with the media about this incident as soon as it becomes available.

We ask everyone in the community to stay in their homes and remain vigilant.

We have a very real and ongoing threat to public safety.

The FBI is assisting the local police in their investigation.

The Michigan State Police is also assisting the FBI.

There have been no further details provided by police.

The incident came on the heels of another deadly shooting at an elementary school in Florida.

The shooting happened Sunday in Jacksonville, and no one was injured.ABC News’ John Sonmez contributed to this report.