Another attempt to support an Irish uprising was made on 7 August 1798. A French fleet sailed from Rochefort-sur-Mer (Rochefort) carrying an expeditionary force led by General Jean Joseph Amable Humbert. The attack was intended to support an uprising of Irish nationalists led by Wolfe Tone. Tone had several meetings with Bonaparte in France to coordinate the timing, but the uprising within the Kingdom of Ireland began early and was suppressed on 14 July 1798 before the French fleet arrived. The French force landed at Killala, in northwest Ireland, on 22 August. It defeated British troops in two small engagements on 24 and 27 August, and Humbert declared the formation of an Irish Republic at Castlebar on 27 August, but the French forces were defeated at the Battle of Ballinamuck on 8 September 1798 by the troops of Lord Cornwallis, British Commander-in-chief in Ireland. A second part of the French expeditionary force, not knowing that the first had surrendered, left Brest on 16 September. It was intercepted by the British Navy in the bay of Donegal, and six of the French warships were captured.