South Korea says the latest hot rhetoric aimed at North Korea by President Donald Trump underlines US resolve to deal strictly with Pyongyang. <br/><br/>A South Korean presidential official told Yonhap news agency that Trump's comments are mostly a repetition of a basic stance that all options will be considered when confronting North Korea. <br/><br/>Another official, Park Soo-hyun, told Yonhap that the amount of time Trump spent on North Korea in his speech shows how seriously Washington takes the issue.