Hackers seized control of a PayPal Twitter feed on Tuesday, then sent out messages criticizing the payment processor in the second attack of its type in two days.

The hijacking of the PayPalUK Twitter feed came a day after hackers took control of a Fox News feed for more than five hours, then sent false tweets saying that U.S. President Barack Obama had been shot dead.

In PayPal's case, the attackers sent out messages promoting paypalsucks.com, a site devoted to what it says is exposing the nightmare of doing business 'the PayPal way.'

A PayPal spokesman said via email that the attack on the Twitter account had not affected the company's operations or its internal computer networks. Officials with Twitter did not respond to emails seeking comment.

PayPal UK is unaffected by this and has not been breached or affected, the PayPal spokesman said.

PayPal is a subsidiary of Ebay Inc, the e-commerce company.

(Reporting by Jim Finkle and Alistair Barr)