Palestinian Prime Minister Rami Hamdallah on Tuesday escaped unhurt after an explosion targeted his convoy when it entered the Gaza Strip. Hamas security forces then sealed off the area.
"Solving the situation in Gaza is vital for humanitarian reasons, important for the security of Egypt and Israel and is a necessary step toward reaching a comprehensive peace agreement between Israelis and Palestinians, including Palestinians in both Gaza and the West Bank".
President Mahmoud Abbas condemned the "cowardly" attack on the convoy and said he held the militant group Hamas, which dominates Gaza, responsible.
Greenblatt reportedly said that the conference will focus on ideas to enhance the Gaza Strip's economy and living conditions, and urged Islamic Hamas movement running the coastal enclave since 2007 to give up armed resistance and commit to peace negotiations.
Hamdallah was not hurt and a short time later attended the inauguration of a sewage plant.
The Hamas interior ministry confirmed there had been an explosion and said they had arrested three suspects as they began an investigation.
Two cars with blown-out windows were being removed from the scene of the explosion shortly afterwards, an AFP correspondent reported.
It is Hamdallah's second visit to the Gaza Strip since the signing of an Egyptian-brokered "reconciliation" agreement between the West Bank's governing Fatah faction and Gaza's Hamas rulers late past year.
Hamas seized Gaza from the PA in a near civil war in 2007 and multiple attempts at reconciliation have since failed. "We will continue to work diligently to complete our government projects in the Gaza Strip", the PM declared.