A team member consistently interrupts you in meetings and tries to undermine your position. How would you handle this situation?

"I had this happen in my previous job. I led weekly staff meetings, and one newly hired employee interrupted me three times during a one-hour meeting. Each time he interrupted, I asked him to wait because his questions would be answered at the end of the meeting. However, he continued interrupting me. After the meeting, I asked him if we could chat in private. I pointed out that he interrupted me three times during the meeting and asked him why he did that. The employee said he didn't realize he was interrupting me and apologized. He said he had a bad habit of interrupting people and would be more aware of it in the future. He also asked if I would give him a hand signal if I interrupted him again to make him aware of his actions. We came up with an agreeable signal I could give to make him aware of his actions without embarrassing him in front of his colleagues. That plan worked well, and within a month or so, he stopped interrupting me completely."