A Hamas policeman checks the passport of a Palestinian passenger at the Rafah border crossing in the southern Gaza Strip May 28, 2011. [Photo/Agencies]

RAFAH, Gaza Strip -- Egypt lifted a 4-year-old blockade of the Gaza Strip on Saturday, greatly easing travel restrictions on the 1.5 million residents of the Palestinian territory in a move that bolstered the Hamas government while dealing a setback to Israel's attempts to isolate the militant group.

The sense of relief was palpable as buses piled high with luggage crossed the Rafah border terminal and hundreds of people traveled abroad for overdue medical appointments, business dealings and family affairs. In Israel, fears were heightened that militants and weapons will soon pour into the territory.

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"I was so happy to hear that the Egyptian border is opening so I can finally travel for treatment," said Mohammad Zoarob, a 66-year-old suffering from chronic kidney disease.

He said he had been waiting for a medical permit from the Palestinian health ministry for five years so he could go to Egypt for treatment. When Palestinian officials coincidentally approved the permit on Saturday, he kissed his family goodbye, rushed to the border and was quickly whisked across.

"They put me in an ambulance and in five minutes I reached the Egyptian side of the crossing," he said.

Saturday's expansion of the Rafah crossing was a tangible benefit of the popular unrest sweeping through the Arab world. The blockade, which has fueled an economic crisis in Gaza, is deeply unpopular among Arabs, and Egypt's caretaker leaders had promised to end it since the ouster of longtime President Hosni Mubarak in February.

Israel and Egypt imposed the blockade after the Islamic militant Hamas seized control of Gaza in June 2007. The closure aimed to weaken Hamas. But the Iranian-backed group remains firmly in power, operating the border crossing even at a time when it is supposed to be reconciling with the rival Fatah movement.

Until Saturday, the Rafah border terminal had functioned at a limited capacity. Only certain classes of people, such as students, businessmen or medical patients, were eligible to travel and the crossing was often subject to closures, leading to huge backlogs that forced people to wait for months.

Under the new system, virtually anyone can travel, and a much larger number of Palestinians are expected to be able to cross each day.

Palestinians take part in a rally at the gate of the Rafah border crossing in the southern Gaza Strip May 28, 2011. [Photo/Agencies]