Tom Tugendhat agreed it was "totally unacceptable".
He has written to Sadiq Khan and the Metropolitan Police setting out his concerns.
"Shall we all laugh off Boris Johnson’s leadership?”
Tom Tugendhat clashed with the Sky News presenter over whether migrants crossing the Channel are breaking the law.
"I think you’re answering a different question Mr Tugendhat," Mishal Husain told him.
"Slightly odd that a member of the cabinet would feel the need to say this."
Boris Johnson always rewarded loyalty, will his foreign secretary follow suit?
The former leadership contender is the latest big name to throw his weight behind the foreign secretary.
None of them raised their hands when asked if they would give him a cabinet job.
“We know very well the others agree with me because otherwise they wouldn’t have resigned from his government."