U.S. President Donald Trump’s administration did not exclude use of military force against North Korea, The Wall Street Journal reported.

According to some information, now Washington is exploring possible measures, against Pyongyang. It was reported that they also review the option of regime change in North Korean.

On Tuesday CNN reported quoting a senior administration official, President Donald Trump believed the “greatest immediate threat” to the U.S. was North Korea and its nuclear program. Trump had already called on China to take action to rein in North Korea, over which China had considerable influence and leverage.