Arlene Foster has acknowledged using "clumsy" wording in a tweet about last week's loyalist rioting.
The DUP leader said there was no doubt those engaging in violence at a community interface in west Belfast last week were breaking the law.
In a tweet condemning the hijack and destruction of a bus during riots on the loyalist Shankill Road last week, Mrs Foster suggested the incident would take the focus off the "real law breakers" in Sinn Féin.
She was making reference to the attendance of senior Sinn Féin members at a mass republican funeral last year when tight Covid-19 restrictions on public gatherings were in place.
Appearing before her Assembly scrutiny committee, Mrs Foster was challenged on the remark by SDLP committee chair Colin McGrath.
The DUP leader suggested Mr McGrath was making mischief.
"Of course people who riot, people who injure police officers, people who destroy their own communities, are breaking the law. That's very clear for everybody to see," she said.
"I hope, chair, that there's not going to be any mischief made today about clumsy wording when I have been unequivocal in my condemnation of violence from all sides during this past week and indeed, can I say, I've always been unequivocal in my condemnation of violence throughout my long time in elected office."
