ABU DHABI, March 2 (Reuters) - The World Trade Organization chief said that some important things had been achieved but others were left incomplete after five days of negotiations on global commerce rules in Abu Dhabi.

A WTO spokesperson confirmed that the extension of an e-commerce moratorium was one of the outcomes. However, there were no deals reached on agriculture and fisheries.

"The beauty of the WTO is that each member has an equal voice but that also comes at a cost," Director-General Ngozi Okonjo-Iweala said in closing remarks. "Let's keep going so we can make our voices heard," she said. (Reporting by Emma Farge)