Media reports said Hamdallah was unhurt, but several bystanders were injured.
Hamdallah was reportedly visiting Gaza, along with Palestinian intelligence chief Majid Faraj, to open a water treatment plant that the Palestinian Authority helped finance. He said in the address that three cars were damaged.
Hamas called the attack an "ugly crime" and said it had launched an investigation.
Has $5.01 Million Position in Intel Co. (NASDAQ:INTC)
The fund had $3 billion in assets as of June 30, 2016, and says it suffered losses as a result of the drop in Intel stock. Blackrock accumulated 29.32M shares. 5,873 shares were sold by Krzanich Brian M , worth $267,663 on Tuesday, January 23.
Gaza's Hamas-run interior ministry said the explosion hit as the prime minister's convoy passed near the northern town of Beit Hanoun.
Top official of the left wing Popular Front for the Liberation of Palestine Kayed Al-ghoul told Xinhua that the White House "is aiming at reestablishing the US role in managing the Palestinian-Israeli conflict by its various dimensions", and added that "Washington wants to use the conference as a blackmail tool against the Palestinian Authority and Hamas to make the Palestinians accept the liquidation project of the century deal".
Mr Hamdallah's ruling Fatah party quickly held Hamas responsible for the "cowardly attack" on the convoy, further escalating tensions between the bitter rival factions.
PSG supremo to meet Neymar as star reveals Barcelona want him back
The Neymar issue is more important than ever and a major source of vexation for Doha, being their prized player. PSG would also like to see Champions League success, and the club recently was eliminated by Real Madrid .
Gaza, part of the territory claimed by Palestine, has been ruled by Hamas since 2007.
U.S. President Donald Trump's senior adviser Jared Kushner, U.S. special envoy Jason Greenblatt and officials from the National Security Council will present proposals for improving the humanitarian situation in Gaza at a White House "brainstorming session" on Tuesday, a senior White House official said, according to Axios.
Aston Villa 4 Wolves 1: Tim Spiers and Nathan Judah analysis
With one win from their past five matches and 10 games to play, the worry for Wolves is whether the wheels come off altogether. The Second City club now occupy third in the Championship, just four points behind the automatic promotion spots.