The White House has denied a report that President Donald Trump suggested Haitian immigrants "all have AIDS".
It also denied that Mr Trump suggested Nigerian immigrants would "never go back to their huts".
According to the New York Times, Mr Trump was said to have made the comments during a meeting with senior staff about levels of immigration in June, at which he complained too many were receiving US visas.
The White House denied to the New York Times that Mr Trump used the words "AIDS" or "huts" in reference to immigrants, calling the suggestions "lies based on anonymous sources".
Sarah Sanders, the White House press secretary, said John Kelly, the White House chief of staff, H.R. McMaster, the national security adviser, and Rex Tillerson, the US Secretary of State, were all in the meeting and denied Mr Trump used the reported words.