PARIS — Fearing that the Obama administration may not take what they consider to be a tough enough stand in the next round of negotiations on a nuclear deal with Iran, senior Israeli officials held talks in Paris on Monday with senior members of the French government and will go to London on Tuesday in an attempt to influence the final terms of any agreement.

France and Britain are among the six world powers — along with the United States, Russia, China and Germany — that are negotiating with Iran on an accord that would require Tehran to submit to verifiable limitations on its nuclear program in exchange for the lifting of United Nations sanctions, as well as separate sets of sanctions imposed by the United States and the European Union.

Negotiations are scheduled to resume later this week in Lausanne, Switzerland, with negotiators working against a self-imposed deadline of March 31 to reach a preliminary agreement. Secretary of State John Kerry will meet on Thursday with the chief Iranian negotiator, Foreign Minister Mohammad Javad Zarif, and some of the foreign ministers from other countries are expected to arrive subsequently.

The Israeli intelligence minister, Yuval Steinitz, said in a statement released Monday night that the talks with the French national security adviser, Jacques Audibert, and the French nuclear negotiating team were “serious and profound” and that the Israelis had laid out their reservations about the emerging deal.