, who was subsequently fired from the prominent New York-based Internet media company IAC/InterActive Corp
after the tweet created a firestorm on social media, issued a statement of remorse on Sunday to ABC News
and South Africa's The Star newspaper.
"Words cannot express how sorry I am, and how necessary it is for me to apologize to the people of South Africa, who I have offended due to a needless and careless tweet," she
Just before boarding a plane for South Africa on Friday, Sacco
posted a tweet to her
online account, saying: "Going to Africa.
Justine Sacco, who was IAC's corporate communications director, wrote in a message on Twitter on Friday, shortly before taking a flight.
The Twitter account has since been deleted, though not before the message was widely circulated online.
, which had earlier condemned the message, said on Saturday that Sacco
and the company have now "parted ways".