South Korea facing 'grave' North Korea test

South Korea's President-elect Park Geun-hye has spoken of a "grave" security challenge from North Korea, following her victory in Wednesday's election.

Ms Park, the ruling Saenuri Party candidate, defeated her liberal rival Moon Jae-in in Wednesday's election.

Speaking after a visit to honour late leaders, she pledged again to "open a new era" on the Korean Peninsula.

Lucy Williamson reports.

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