By Arshad Mohammed MONTREUX, Switzerland (Reuters) - The U.S. and Iranian foreign ministers wrapped up three days of talks over Iran's nuclear programme on Wednesday, a day after Israeli Prime Minister Benjamin Netanyahu said the deal being negotiated was a serious mistake. U.S. Secretary of State John Kerry and Iran's Mohammad Javad Zarif have negotiated for more than 10 hours since Monday in the Swiss lakeside town of Montreux, hoping to work out a framework deal by late March. "We expect that we (and the Iranians) will regroup bilaterally, with the European Union present as well, on the 15th of March, location to be confirmed but most likely Geneva." Asked if he thought they had made progress, Zarif told reporters: "We have, but a lot of work remains." However, Netanyahu's controversial speech to the U.S. Congress on Tuesday, where he harshly criticised the diplomatic efforts to resolve the dispute, may make it harder for the Obama administration to sell the potential deal back home.