It comes after the United Kingdom backed USA airstrikes on a Syrian airbase from where a horrifying chemical attack was allegedly launched.
Tillerson stopped short of accusing Russian Federation of direct involvement in planning or carrying out the attack, saying he had not seen "any hard evidence" to suggest Moscow was an accomplice to Assad.
Mr Johnson was due to...
Mr Johnson has scrapped a visit to Russian Federation next week so US Secretary of State Rex Tillerson can go alone and deliver a clear message.
"Lavrov stressed that an attack on a country whose government is fighting terrorism only plays into the hands of extremists [and] creates additional threats to regional and global security", it said.
"That's not a position any Foreign Secretary would want to be in".
ISIS propaganda chief killed in strike on Iraq-Syria border
In addition to civilians caught in the crossfire inside the city, many more have fled their homes to escape the fighting. Al Ansari was killed with four others in a strike Saturday in al Qaim, Iraq, on the border with Syria, Scrocca said.
"We deplore Russia's continued defence of the Assad regime even after the chemical weapons attack on innocent civilians".
The foreign secretary called off his planned trip to Moscow after Russian Federation refused to condemn the alleged use of Sarin gas by the Syrian regime and reacted angrily to USA airstrikes launched in retaliation.
Sky News Political Correspondent Tamara Cohen said: "The meeting was seen as an attempt at bridge-building after Mr Johnson's high-profile swipes at Russian Federation, accusing them past year of "war crimes" in Syria and perpetrating more violence in Ukraine".
The general consensus among both parties is that working with the worldwide community in a diplomatic fashion is probably the best strategy in dealing with Assad, but if Trump doesn't go before Congress to explain his future plans and chooses to launch another strike at Syria, could this unleash a serious war?
On Friday, Russia criticized the airstrikes as "an irresponsible approach that aggravates problems the world is facing".
The base was largely evacuated before the USA strikes, after Washington forewarned Moscow, which in turn alerted the Syrian government, according to a senior military source in the alliance fighting in support of Assad.
Samsung has started firmware development for the Galaxy Note 8
However, the Samsung Galaxy C7 Pro runs on Qualcomm MSM8953 Snapdragon 625 and is powered by Android OS, v6.0.1. It boasts 4GB RAM with 64GB internal memory which can be expanded up to 256GB with a microSD card.
"In the past 48 hours they just got a lot worse".
Mr Johnson said developments in Syria had "changed the situation fundamentally" as he dropped out of the planned talks with Mr Lavrov. "The Foreign Secretary has engaged his counterpart previously as well".
Moscow and Damascus say the deaths were the result of a Syrian air strike on a depot where rebels were making chemical weapons that then leaked into the town - a claim rebels deny and Washington dismisses as beyond credibility.
On Sunday, Rubio said on ABC he supported the airstrike and "I don't think you use the US military simply to send a message. It's right that North Atlantic Treaty Organisation allies speak with one voice".
"This strike was related exclusively to the most recent horrific use of chemical weapons against women, children, and as the President said, even small babies", Tillerson said on ABC's "This Week". "And Russia was never part of the targeting".
US comment terse on latest North Korea missile
The launch - a KN-15 medium-range ballistic missile - will fuel global concerns about the hermit state's weapons programme. In March, Tillerson said that all options, including military, are on the table to counter the regime's nuclear ambitions.