Hamas agreed to hand over power to a unity government last month and Rami Hamdallah's visit, the first since 2015, saw his ministers take control of ministries in Gaza.
A suicide bomber killed a Hamas guard in southern Gaza on Thursday, in a rare Islamist attack against the Palestinian group that has run the impoverished enclave for a decade.
The Palestinian Authority has dramatically reduced financial support for Gazans seeking medical care outside the blockaded Gaza Strip, WHO figures showed on Wednesday.
A court in the Gaza Strip on Sunday sentenced three men to death over the assassination of a Hamas military commander that the Islamist movement accused Israel of masterminding.
Egypt reopened the Rafah border crossing with the Gaza Strip for three days starting on Saturday to allow hundreds of stranded Palestinians to return home, officials said.
Hamas shut the crossing between the Gaza Strip and Israel on Sunday after blaming the Jewish state for the assassination of one of its officials in the Palestinian enclave.
Israeli tank fire struck a Hamas post in the Gaza Strip on Wednesday after a rocket launched from the Palestinian enclave hit a nearby Israeli city, with no casualties reported on either side.