Reuters reports that Syrian regime forces and rebel forces reached an agreement that both groups will allow a combined 500 people to leave blockaded towns.
The towns blockaded by rebels are al-Foua and Kefraya in Idlib province. The towns are both predominantly Shia and pro-government.
The towns at the Lebanese border blockaded by pro-government forces are Zabadani and Madaya. Madaya's blockade was briefly lifted to allow emergency aid in January, but many have still died from starvation.
A ceasefire has been in effect since mid-February, though both sides report violations.