Donald Trump hailed Monday's Supreme Court ruling which partially reinstates the US president's travel ban targeting citizens from six mainly Muslim countries as a victory for national security.

"Today's unanimous Supreme Court decision is a clear victory for our national security," Trump said in a White House statement.

"It allows the travel suspension for the six terror-prone countries and the refugee suspension to become largely effective. As president, I cannot allow people into our country who want to do us harm."

Sourve: AFP