At the stroke of midnight, gunfire and fireworks celebrated the start of the ceasefire in Beirut.

Throughout the morning, smiling crowds gathered along roads leading to Lebanon's south, the heartland of Hezbollah, playing revolutionary music and waving the group's yellow flag as they started their journey back to where they had been forced from by the war.

This is, initially, a 10-day ceasefire after six weeks of a devastating conflict between Israel and Hezbollah, the Lebanese Shia Muslim militia and political party. But it brings some respite for a country exhausted by the war.

More than 2,100 people have been killed, Lebanese health authorities say, and over a million, or roughly one in five of the population, have been displaced - creating a pressing humanitarian crisis.

Mattresses on top of cars and families on motorbikes indicated that people were on the move - but many are not returning to stay.

In some places, the damage is too extensive and for some there is nothing to go back to at all. Some towns and villages near the border remain under Israeli occupation.

But in the Hezbollah-controlled southern suburbs of Beirut, known as Dahieh, the streets remained relatively quiet. The area has been hammered by Israel during the war, and many residential buildings have been reduced to rubble.

In the city's waterfront, where hundreds of displaced families have been living in improvised tents, some said they feared returning.

Announced by US President Donald Trump, the ceasefire leaves open questions. For one, it does not mention the withdrawal of Israeli troops from southern Lebanon, which has raised fears that parts of the country will remain occupied even after the war.

Secondly, there is the issue over Hezbollah's weapons, which has long divided the nation. Disarmament is a demand of the US, Israel, and many Lebanese, who accuse the group of defending the interests of its patron, Iran, and dragging the country into unnecessary wars.

Supporters say Hezbollah is the only protection they have in a weak state. Speaking to the BBC in a rare interview, Wafiq Safa, a high-ranking member of Hezbollah's political council, said the group would never, ever disarm.

Additionally, according to the deal, Israel may even continue to attack Lebanon, citing security concerns – a possibility that could return the country to the pre-war situation where Israel conducted near-daily strikes against targets linked to Hezbollah.

Trump seems to hope this ceasefire could be a stepping stone towards normalising relations between Israel and Lebanon, yet the ongoing occupation and the unresolved issue of Hezbollah's arms complicate the prospect of lasting peace between the historically adversarial neighbours.