Could US President Donald Trump's Twitter account be suspended for "threatening violence" against North Korea?
And that doesn't mean talk hasn't been tough - the US has been speaking forcefully to North Korea all this time, said Ellen Tauscher, former USA under secretary of state for arms control and global security under President Barack Obama.
"They discussed the need to confront the increasingly risky situation associated with North Korea's destabilising and escalatory behavior", the White House said in a statement. Friday morning, Trump tweeted that the military was "locked and loaded" should North Korea "act unwisely".
Trump also reiterated their mutual commitment to denuclearisation of the Korean Peninsula, it added.
The White House says Trump also told Xi he looked forward to seeing him in China later this year.
President Donald Trump is seeking continued help from China's president in addressing the threat posed by North Korea's nuclear developments.
France and other UN Security Council members want North Korea to "proceed with the complete, verifiable and irreversible dismantlement of its nuclear and ballistic programmes", Macron said in the statement.
It prompted Mr Trump to warn that he would unleash "fire and fury" on North Korea if it did not stop its threats.
The comments came after Trump unleashed a slew of fresh threats against North Korea on Friday, declaring the USA military "locked and loaded".
The Chinese foreign ministry said Xi urged Trump to avoid "words and deeds" that would "exacerbate" the already-tense situation and to exercise restraint and seek a political settlement.
Prime Minister Shinzo Abe says he will do everything he can to protect the Japanese people as tensions escalate over North Korean plans to send missiles flying over Japan toward Guam.
North Korea's state-run Korean Central News Agency accused Trump earlier of moving the Korean Peninsula "to the brink of a nuclear war".
Trump said in a tweet Friday that USA military options were "locked and loaded" if North Korean leader Kim Jong-Un acted unwisely.
Asked Friday if the USA was going to war, he said cryptically, "I think you know the answer to that".