According to Elleman, when North Korea demonstrated the 8,000-mile range of the Hwasong-15 and its other long-range missiles, they "likely carried very small payloads".
The situation around North Korea escalated in recent months, following a number of nuclear and missile tests performed by the country.
The claim was not proven and experts have cast doubt on the country's ability to master such technology.
U.S. Air Force aircraft arrived in South Korea on Saturday to participate in a joint aerial drill just a week after North Korea launched a ballistic missile.
North Korean leader Kim Jong Un watches the launch of a Hwasong-12 missile, September 16.
The test - one of several this year - has been condemned by the worldwide community and the UN Security Council called an emergency meeting. "We have repeatedly stated that the pressure of sanctions has been exhausted", Lavrov said on Thursday.
Stanton's Reps Receive Approval To Meet With Cardinals
His contract allows him to opt out after the 2020 season, which would guarantee only three seasons with his next team. For now, we'll remain in a holding pattern until the reigning Major League Baseball home run king makes a decision.
"The Americans should explain to all of us what they are trying to do - if they want to find a pretext for destroying North Korea they should come clean about it, and the American leadership should confirm it", he told reporters. But China has refused to turn off its pipeline shipping crude to the North Beijing fears that taking tougher actions could cause the regime to collapse, triggering a refugee crisis across its border with the North and eliminating a strategic buffer separating China from the U.S. military in South Korea.
"We need China to do more", Ms Haley said on Wednesday.
Haley said Trump had called Chinese President Xi Jinping and urged him to "cut off the oil from North Korea", a move that would deal a crippling blow to North Korea's economy. But China's foreign ministry sidestepped questions about the USA call for an oil embargo, with spokesman Geng Shuang saying that Beijing upholds United Nations resolutions and backs the denuclearisation of the Korean peninsula.
China is a historic ally and North Korea's most important trading partner and Pyongyang is thought to be dependent on China for much of its oil supplies.
"The Chinese Envoy, who just returned from North Korea, seems to have had no impact on Little Rocket Man", Trump wrote.
Speaking in Missouri, the U.S. leader derided Mr Kim, describing him as a "sick puppy" and "little rocket man".
China's state-run Xinhua news agency said Mr Xi told Mr Trump that denuclearising the Korean peninsula, maintaining the worldwide nuclear-nonproliferation regime and preserving peace and stability in north-east Asia were China's unswerving goals.