N. Korea sends more balloons as Kim Jong Un's sister warns of 'new counteraction'

North Korea sent hundreds more trash-carrying balloons over the border, Seoul's military said Monday, after Kim Jong Un's powerful sister warned of further responses if the South keeps up its "psychological warfare". Seoul's military said the North had sent around 310 trash-carrying balloons overnight, with no more detected in the air by early Monday, the Yonhap news agency reported.