The US and Russia are preparing for a new round of bombing in Syria, according to the New York Times.
The paper, citing US intelligence, said that US-Russia cooperation in the war-torn country has begun to slow, but it added that the two countries are still close allies.
“The Russians are still trying to find a balance, and they’re not as willing to take risks with their air force and with their navy,” the paper said.
“So it will be interesting to see how that plays out in the coming weeks.”
Russia is already ramping up its military role in Syria and has sent its air force to the country.
The US military, meanwhile, has begun sending weapons to the Syrian opposition.
On Friday, US Vice President Joe Biden said that the US had agreed to a ceasefire with Russia, which has been fighting against President Bashar al-Assad’s government since 2013.
The ceasefire is meant to end the violence in Syria.