Russian President Vladimir Putin signed a nuclear energy cooperation deal with Argentina on Saturday on a trip to bolster trade ties and strengthen Russia's influence in Latin America.

Putin's energy minister, Alexander Novak, told reporters in the Argentine capital that the Russian state atomic energy corporation, Rosatom, had made an offer to tender for the construction of two new nuclear power units in Argentina.

Novak said Rosatom could offer "comfortable" financial terms to Latin America's No. 3 economy, which has struggled to advance its nuclear energy program and lure foreign investors deterred by a raft of punishing capital and import controls.