SEOUL: State prosecutors are considering summoning ex-president Roh Tae-woo for a second time after grilling the heads of South Korea's conglomerates over his US$654 million (about HK$5 billion) slush fund, a senior prosecutor said yesterday. 'Former president Roh Tae-woo can be resummoned for more questioning,' senior prosecutor Ahn Kang-min said yesterday. Local media and many political commentators have speculated that if Roh is summoned again he will be arrested. This would make him the first South Korean head of state, serving or retired, to face criminal action. Mr Ahn, who is leading the inquiry into Roh's slush fund scandal, said the prosecution had not yet made a decision on whether Roh would be summoned again. When Roh was summoned for the first time last week, he told prosecutors he either could not reveal or did not remember how he amassed and concealed the slush fund. But in the past week, heads of leading conglomerates have told prosecutors they donated up to 10 billion won (HK$100 million).