But the Mail's managing editor's office said in a statement that they would refuse to deny "absurd" allegations with a reply.
"We are not going to dignify these absurd comments, which willfully misrepresent this cartoon, with a response," they commented.
"As should be blindingly obvious, Mac’s cartoon is a comment on the terrorist atrocities in Paris. The rats were intended to depict terrorists smuggling themselves into Europe amongst innocent refugees."