MOSCOW (Reuters) - The Kremlin said on Monday Russia's air force would stick to the ceasefire in Syria's Aleppo unless militants launch an offensive.

"The (Russian) president deems a regime when Russian air forces don't carry out strikes on eastern Aleppo as reasonable if militants don't start combat action," Kremlin spokesman Dmitry Peskov told reporters.

(Reporting by Maria Tsvetkova; editing by Vladimir Soldatkin)