The Palestinian Authority described the blast, which did not harm Prime Minister Rami Hamdallah but caused minor injuries to at least six bodyguards, as an assassination attempt. It held Hamas, the Islamist party in control of the Gaza Strip, responsible for what it described as a "treacherous act."
For its part, Hamas condemned the incident and said it has opened an investigation, quickly arresting several people. It accused "Israel and its agents" of being behind the attack in an effort to undermine Palestinian unity efforts.
Hamdallah was in Gaza to meet with Hamas officials in an attempt to restart talks between the Palestinian Authority, controlled by his party, Fatah, and its rival, Hamas. His convoy was just a few hundred yards from the Erez Crossing, which separates Gaza from Israel, when it was struck.