The deputy head of the Israeli Security Agency (Shin Bet) is stepping down from his post after three decades with Israel’s internal security and counterintelligence service, Hebrew media reported on Wednesday.

Identified only as S., he previously served as acting Shin Bet chief before David Zini’s appointment as director earlier this year.

According to the agency, S. had agreed to remain as deputy temporarily to assist the transition, “until the agency stabilizes.” His resignation comes about two and a half months after Zini assumed the post.