Nissan Motor Co. is considering raising its stake in Renault S.A. to 25 percent from the current 15 percent as a way to counter the French government's influence over their alliance, sources familiar with the matter said Tuesday.

Nissan, the nation's second-biggest carmaker by volume, discussed countermeasures at a board meeting Monday as the government's voting rights in Renault are set to rise to 28 percent in 2016.

A law was passed in France last year to double the voting rights of investors owning shares for at least two years unless rejected by two-thirds of shareholders.