(CNN) Rep. Maxine Waters said Thursday she's seen an increase in threats since she made controversial comments last week encouraging protesters to heckle and harass members of Trump's Cabinet in public spaces.

The California Democrat canceled two scheduled appearances in Alabama and Texas this weekend after saying she got threatening messages and "hostile mail" at her office, including "one very serious death threat" on Monday from an individual in Texas.

"As the President has continued to lie and falsely claim that I encouraged people to assault his supporters, while also offering a veiled threat that I should 'be careful', even more individuals are leaving (threatening) messages and sending hostile mail to my office," she said in a statement.

"There was one very serious death threat made against me on Monday from an individual in Texas which is why my planned speaking engagements in Texas and Alabama were cancelled (sic) this weekend," she continued. "This is just one in several very serious threats the United States Capitol Police are investigating in which individuals threatened to shoot, lynch, or cause me serious bodily harm."

Reached for comment, a spokeswoman for the US Capitol Police said they do not comment on ongoing investigations.