US defense chief says Trump-Kim summit may be back on

U.S. Defense Secretary James Mattis said on Friday that a recently scrapped summit between the leaders of the United States and North Korea may still take place if diplomats can pull it off.

"We have got some possibly some good news on the Korea summit, where it may, if our diplomats can pull it off, may have it back on," Mattis told reporters at the Pentagon before a meeting with the Danish defense minister.