France is stepping up efforts to save the life a Frenchman facing a firing squad in Indonesia on drug charges, amid signs that his execution may be suspended.

Serge Atlaoui is among 10 foreigners slated for execution in the coming days in Indonesia. His case has drawn national attention in France, which vigorously opposes the death penalty.

French Foreign Ministry spokesman Romain Nadal said Saturday the government is intensifying its mobilization and determined to prevent execution.

The French ambassador was not summoned to a meeting with Indonesian authorities Saturday for formal notification of the execution, unlike consular officials from other countries.

A lawyer for Atlaoui, Richard Sedillot, said the decision was apparently linked to an outstanding legal complaint in Atlaoui's case that may mean his execution is put on hold.