Jack Dorsey, the founder of Twitter, has said he will donate $1bn (£810m) to help tackle the coronavirus pandemic.
He says the donation represented approximately 28% of his wealth and he made the announcement earlier today on, Twitter.
The US is the most affected country by coronvirus and Dorsey follows Jeff Bezos (Amazon) and Mark Zuckerberg (Facebook) who have both also made huge donations towards the relief effort.
Mr Dorsey has not said where he would like the money to be spent or now.
In the US there is a shortage of ventilators and personal protective equipment, and business and individuals are also struggling economically.
Mr Dorsey will use shares he owns in Square to fund the donations which will be distributed through the Start Small Foundation.
The 43-year-old is the chief executive of both Twitter and Square.
Business Leader reported earlier today about the amount of money that tech firms are donating to fight the virus. Click here to see the full article.