British Defence Secretary Michael Fallon resigned Wednesday after allegations of past inappropriate behavior, including that he once put his hand on a journalist's knee.

"I accept that in the past I have fallen below the high standards that we require of the Armed Forces that I have the honour to represent," Fallon wrote in his resignation letter to British Prime Minister Theresa May. "I have reflected on my position and I am therefore resigning as defence secretary"

Fallon’s spokesperson confirmed that Fallon was once reprimanded for placing his hand on a journalist’s knee during a dinner in 2002. The journalist, radio broadcaster Julia Hartley-Brewer, described it as a “mildly amusing” encounter that she has "no issues" about.

"I have spoken previously about a Cabinet minister who repeatedly put his hand on my knee during a party conference dinner. I calmly and politely explained to him that, if he did it again, I would 'punch him in the face.' He withdrew his hand and that was the end of the matter," Hartley-Brewer said in a statement.

In a followup tweet, Hartley-Brewer said "no one was remotely upset or distressed by it. My knees remain intact."

Fallon's resignation is the first from May’s government following a growing sexual harassment scandal involving members of Parliament at Westminster.