Mr Moon told the visiting top US military official that there must be a diplomatic solution to the crisis.
Gen Joseph Dunford said the US priority was diplomacy but he added that it was committed to defending the South against a possible military attack.
The North on Monday said any war could "only be turned into a nuclear war".
Also on Monday, China's commerce ministry issued an order banning a slew of imports from North Korea, in line with additional UN sanctions that were announced earlier this month.
The sanctions were introduced in response to a wave of missile tests and increased military rhetoric from North Korea.
In another development, Ukraine has denied supplying North Korea with rocket engines from one of its factories.
A report in the New York Times suggests that Soviet-era engines made at the Yuzhmash factory in Dnipro (the city known until recently as Dnipropetrovsk) were supplied to the North illegally.
Vivo has just launched the company's latest smartphone Vivo V19 in India as expected.
Realme has launched the company’s latest Nazro series smartphones- Realme Nazro 10 and Nazro 10A in India.
Here is the first look of LG's new entry-level/midrange smartphone - LG Stylo 6 which was shared by reliable leakster Evan Blass.
Xiaomi India has just unveiled it's latest flagship killer- Xiaomi Mi 10 5G smartphone in India.
After several teasers and rumors, LG has finally unveiled the company's latest 5G smartphone- LG Velvet on May 7 in South Korea. The company has also revealed the pricing and availability details of the phone.
Now, LG has started pre-registration for its LG G8X ThinQ smartphone and other products as the coronavirus lockdown in India continues.
Vivo has introduced the “Vivo Smart Retail” system on Sunday that lets people buy Vivo smartphones offline from home in light of the COVID-19 pandemic at the moment.
The South Korean company-LG is currently working on a new entry-level smartphone- LG Premier Pro Plus( LG L455DL). Now, the specifications and user manual of LG Premier Pro Plus have spotted on Google Play Console listing.
Honor has introduced three new 9 series budget-friendly smartphones - Honor 9A, Honor 9C, and Honor 9S in Russia on Wednesday.
LG has now announced that the company's midrange redesigned smartphone- LG Velvet will be unveiled on May 7 in an online event.