Yemen's President Ali Abdullah Saleh was killed on Friday after an attack on the presidential palace, Suhail, a TV station run by the country's opposition, reported.

It said the presidential palace was hit by shells on Friday morning in a fighting between Saleh's forces and a powerful tribal federation, said a report by Reuters.

However, in an immediate rebuttal, the government said Saleh is alive and brushed aside the report as rumor.