A sit-in, near the UN Relief and Work Agency (UNRWA) office in al-Baddawi refugee camp in northern Lebanon's port city of Tripoli, was held Thursday by the Palestinians refugees who fled the Yarmuk refugee camp in Syria's Damascus, the National News Agency (NNA) reported.

The participants of the sit-in demand the organization to act responsibly concerning their humanitarian crisis, the report said.

According to the NNA, the protesters urged the UNRWA "to act swiftly to implement a comprehensive emergency plan to aid the Palestinian refugees" fleeing Syria.

It added that a similar sit-in was held inside the Palestinian refugee camp of Nahr al-Bared in northern Tripoli.

Refugees also called on the Palestinian Liberation Organization (PLO) to help them by providing them with the required humanitarian aid and to press the Lebanese authorities to swiftly resolve their conditions.

Heavy battles around the Yarmuk refugee camp in Damascus erupted in the past days between the Syrian government forces and the rebels Free Syrian Army (FSA).

Around 10,000 Palestinians had fled from Syria to Lebanon last week, but since the latest violence two days ago, another 3,000 had crossed the border or were in the process of crossing, UNRWA deputy chief of staff Lisa Gilliam said Wednesday.