BEIRUT: The Lebanese parliament will convene on Friday to discuss what to do about a fuel crisis that has brought much of the country to a halt and sparked deadly violence.

Speaker Nabih Berri called the session to discuss “appropriate action” over crippling fuel shortages, a crunch point in a two-year financial meltdown that marks Lebanon’s worst crisis since the 1975-90 civil war.

A rocket-propelled grenade was fired near a Beirut petrol station during a dispute over gasoline, a security source said. Gunmen opened fire on soldiers who had detained a man who tried to fill his car by force. The station caught fire.

The steadily worsening fuel crisis has hit a low in the last week, with power blackouts forcing some hospitals, bakeries, and businesses to scale down or close.

A senior UN official said water supplies and essential health services were threatened, warning of a humanitarian catastrophe. “A bad situation only stands to get worse unless an instant solution is found,” said Najat Rochdi, the UN humanitarian coordinator for Lebanon.

Last week, the central bank announced it could no longer finance imports of gasoline and diesel at heavily discounted exchange rates, effectively ending a subsidy scheme which promises to increase prices sharply.

Governor Riad Salameh has been at odds with the government over the move, as the government says it should have been done only after the provision of prepaid cash cards for the poor.

Salameh has said he can resume subsidizing imports only if a law is passed allowing him to dip into the mandatory reserves.