Donald Trump has defended his nominee to lead the CIA after she offered to withdraw over questions about her role in the agency's interrogation unit.

The US president said Gina Haspel had "come under fire because she was too tough on terrorists".

Ms Haspel, who will be grilled by Senators during her confirmation hearing on Wedneday, has now decided not to withdraw after receiving encouragement from Mr Trump's key aides.

The 61-year-old was nominated for the top position after Mike Pompeo, the former CIA director, was appointed secretary of state. If confirmed, she will be the first woman to lead the CIA.