Jordan briefly allowed limited passage on Sunday at its border crossing with the Israeli-occupied West Bank, it said, three days after it was closed following an attack that killed two Israeli soldiers.
"The crossing reopened Sunday for travellers only, while the movement of cargo trucks remains suspended until further notice," the authorities said initially, AFP reported.
State broadcaster Al-Mamlaka had reported heavy traffic in both directions from early in the morning.
But the Palestinian border authority later said in a statement that "the Israeli side suddenly closed" the crossing, and that it would remain shut for the rest of the day.
The Israeli authorities said: "In coordination with the Jordanians and Palestinians, the Allenby terminal will not open for passenger traffic today."
The crossing is the only gateway Palestinians in the West Bank can use to travel abroad without passing through Israel, which has occupied the territory since 1967.
On Thursday, a Jordanian truck driver carrying aid for Gaza opened fire at the crossing, killing an Israeli soldier and a reserve officer with the civil administration before being "neutralized", according to Israel.
Following the attack, the Israeli military asked Jordan to suspend the transfer of aid through the terminal.
Jordan said it had launched an investigation and identified the assailant as Abdel Mutaleb al-Qaissi, 57.
It described him as "a civilian who had been working for three months as a driver delivering aid to Gaza", which the UN says is suffering from a humanitarian crisis after nearly two years of devastating war.
Amman condemned the attack, calling it "a threat to the kingdom's interests and to its ability to deliver humanitarian assistance to the Gaza Strip".
