Israel Police spokespman officer says investigators are to quiz Prime Minister Ehud Olmert again on corruption allegations in what will be the sixth round of questioning so far.

Police spokesman Micky Rosenfeld said detectives would interview Olmert at his official residence in Jerusalem on Friday morning.

Olmert is suspected of improperly accepting funds from U.S. businessman Morris Talanksy and of violations in funding trips abroad. Talansky previously testified that he gave Olmert $150 thousand, mostly in cash, for political campaigns and travel expenses.

Olmert has said he will resign once the Kadima party picks a new leader in September.

Friday's session with fraud squad detectives is scheduled to last around two and a half hours, Rosenfeld said Tuesday.