Gbagbo's forces attack Ouattara's Ivory Coast base

ABIDJAN (Reuters) - Forces loyal to Ivory Coast incumbent leader Laurent Gbagbo have stepped up a counter-attack on presidential claimant Alassane Ouattara by firing on his hotel headquarters in Abidjan.

Rebel forces seeking to install Ouattara, who won an election last November according to results certified by the United Nations, swept from the north to the economic capital Abidjan almost unopposed more than a week ago.