South Korea intelligence chief says more attacks likely

South Korea's intelligence chief said on Wednesday that North Korea was highly likely to  attack again, a week after Pyongyang fired a barrage of  artillery shells at a South Korean island, Yonhap news agency  reported.

"There is a high possiblity that the North will make another attack," Won Sei-hoon, director of the National  Intelligence Service, told a parliamentary committee meeting.

The latest attack came as "internal complaints are growing  about the North's succession for a third generation, and its economic situation is worsening", Yonhap quoted him as saying.