Laravel database connections being kept open

I have this Laravel app that keeps 50 ish processes running sleep command and every time I kill those they keep coming back.

I have no idea where to look first and how to resolve this issue. I simply don't want this many connections being open on the server.

I tried to delete all failed_jobs from the table, there are no jobs to attempt.

The laravel scheduler runs every minute to make the queue work in order to send the mails.

via Chebli Mohamed