The Hezbollah-controlled TV station al-Manar reported the agreement earlier on Wednesday.
The towns at the Lebanese border blockaded by pro-government forces are Zabadani and Madaya. Those blockaded by rebels are al-Foua and Kefraya in Idlib province, both predominantly Shi`ite and loyal to the government.
One Syrian Arab Red Crescent car leaving Madaya and Zabadani came under rebel fire but there were no casualties, a witness told Reuters. Lebanese TV station al Mayadeen also reported the Red Crescent convoy had come under rebel fire.
Residents of Madaya and Zabadani will be taken to the rebel-held Syrian town of Idlib, not over the border to nearby Lebanon, the witness said.
The warring sides agreed a local ceasefire for the four towns in September, though the agreement has not been fully implemented.
Evacuation from blockaded Syrian towns begins, witness says
21 April 2016
Read: 680
The evacuation of 250 Syrians from two towns blockaded by pro-government forces near the Lebanese border began on Wednesday, a witness told Reuters, after an agreement was reached which also allowed for another 250 people to leave two other towns blocked off by Syrian rebels in northwestern Syria.
