BETHLEHEM (Ma'an) -- Here concludes our live report of Nakba Day commemorations. Below is an account of the events as they unfolded on May 15, 2012.
2029: Some 25 people were hurt in the Gaza Strip after Israel detonated equipment apparently intended to block protesters at the Erez crossing, according to medics and an army spokeswoman.
1549: Medics say 63 Palestinians were injured by rubber bullets in clashes with Israeli forces outside Ofer jail near Ramallah, while 21 are hurt in a demonstration at Qalandiya checkpoint.
1500: Students, activists and local officials gathered in Qalqiliya to unveil the "train of return," a model train symbolizing refugees' right to return.
Qalqiliya governor Ribhi Khandaqji noted the train was facing Israel. "This train will remind us, and will remind our children of the right of return," he added.
1445: In Beirut, youths of the Palestinian Democratic Union chained themselves and waved Palestinian flags in front of the UN headquarters to mark the Nakba, Reuters reports.
1421: Gaza premier Ismail Haniyeh is taking part in a commemorative marathon in Gaza City with other ministers, a Ma'an correspondent says.
1311: Hundreds gather at Israel's Ofer jail, near Ramallah, where forces fire tear gas at the protest, Popular Committee says. Israeli army says using riot dispersal means against stone-throwers.
1304: Images show undercover Israeli police officers detaining Palestinians suspected of throwing stones in the East Jerusalem neighborhood Issawiya. Photographer: Ammar Awad, Reuters.
1254: Thousands take part in a cross-factional march from central Gaza City towards the UN headquarters, while raising only Palestinian national flags, a Ma'an correspondent says.
1217: Hundreds rally in Ramallah's Clock Square as sirens sound to commemorate Nakba, reporters say. Photographer: Trevor Lewis.
1130: Hamas releases a statement marking the Nakba anniversary which says "countries which contributed to the Nakba of Palestine, namely Britain, must do penance for their sin by stopping Israeli aggressiveness."
1126: Lebanese security officials urged Palestinians to restrict Nakba Day events inside refugee camps and not hold mass rallies, Lebanon newspaper The Daily Star reports.
1100: Israeli police spokesman Mickey Rosenfeld says four people were arrested in East Jerusalem neighborhood Issawiya after throwing stones at Israeli forces.
1035: The Popular Struggle Coordination Committee says three protesters, including activist leader Naji Tamimi, were arrested while trying to cross the Nilin Checkpoint in the central West Bank. Israeli army says looking into it.
0920: Commemorations of the 64th anniversary of the Nakba, or catastrophe, of Palestinian expulsion in 1948 began in the late hours on Monday, as youth marched through Hebron carrying "torches of return."
President Mahmoud Abbas said in a speech marking the anniversary "We will remain on our land .. like our olive trees."
Follow this live report for a minute-by-minute account of events as they unfold.