According to Palestinian sources, troops from an elite IDF unit arrested Wa'al Shtiv, an al-Aksa Brigade's operative in Nablus on Monday.
The suspect was arrested in the city's streets and no casualties were reported, said the Palestinians.
The IDF said that Shtivi is responsible for a shooting attack in the area and was armed with a pistol during his arrest. Shtivi was involved in the terror attack in Kdumim which left four Israelis dead.
The suspect was transferred to security interrogations.