Trump presses China on North Korea border ahead of summit

US President Donald Trump on Monday urged China on Monday to maintain a secure border with North Korea, pressing Beijing ahead of his anticipated meeting with North Korean leader Kim Jong Un next month aimed at denuclearization.

"China must continue to be strong & tight on the Border of North Korea until a deal is made. The word is that recently the Border has become much more porous and more has been filtering in. I want this to happen, and North Korea to be VERY successful, but only after signing!" Trump tweeted.

He did not elaborate on the significance of the North Korea-China border issue in any deal that might be reached on denuclearization. Trump has said his meeting with Kim will take place on June 12 in Singapore.