President Donald Trump has pilloried an envoy who testified in the impeachment inquiry, claiming she refused to hang his photo in the US embassy in Ukraine, BBC News reported.

Trump told Fox News' morning show former ambassador Marie Yovanovitch "didn't want to hang my picture in the embassy" in Kyiv.

In a phone call to Fox and Friends on Friday morning, the US president Trump defended the removal of Yovanovitch.

"This ambassador, who everybody says was so wonderful," Trump said, "she wouldn't hang my picture in the embassy.

Trump added: "She said bad things about me, she wouldn't defend me, and I have the right to change the ambassador.

"The standard is you put the president of the United States' picture in the embassy," he continued. "This was not an angel, this woman, OK?"