President Joe Biden has tested positive for COVID-19, the leader of a Hispanic civil rights group announced Wednesday while explaining why he would not be delivering a speech as planned.

Biden was scheduled to speak at the UnidosUS Annual Convention in Las Vegas, but his speech was delayed until Janet Murguia, the groups president and CEO, came out to address the crowd.

Biden had called her, she said, and shared his deep disappointment at not being able to join us this afternoon.

The president has been at many events, as we all know, and he just tested positive for COVID, Murguia announced.

Hes just really sorry he couldnt be with us, she added.

Biden is experiencing mild symptoms, White House press secretary Karine Jean-Pierre said in a statement, noting that he has been vaccinated and boosted.

He will be returning to Delaware where he will self-isolate and will continue to carry out all of his duties fully during that time, Jean-Pierre said.