BEIRUT, May 7: Supporters of Lebanon’s US-backed government fought gun battles in Beirut on Wednesday with gunmen loyal to the Hezbollah-led opposition, escalating the country’s worst internal crisis since the 1975-90 civil war.

Supporters of pro-Iranian Hezbollah blocked main roads in the Lebanese capital with blazing tyres, old cars and heaps of earth, paralysing the city and cutting routes to its sea and airports.

The clashes took place a day after the government accused Hezbollah of violating the country’s sovereignty by operating its own telecommunications network and installing spy cameras at Beirut airport.

Air traffic was suspended on Wednesday because of a strike by staff taking part in labour union action to demand more pay.

The strike was backed by the Hezbollah-led opposition, whose struggle with Prime Minister Fouad Siniora’s anti-Syrian cabinet has already led to bouts of lethal street violence.

Security sources said pro-government supporters exchanged assault rifle and grenade fire with Hezbollah sympathisers in the Beirut neighbourhoods of Noueiri, Ras al Nabae and Wata al-Musaitbeh. It was not clear if there were casualties.

Youths loyal to the rival sides pelted each other with stones in Mazraa — one of the Beirut districts where sectarian tensions have been high.

The army, which has been seen as mostly neutral through the crisis, fired into the air to keep them apart. But it did not attempt to remove road barricades.

Government minister Marwan Hamadeh said Hezbollah was “trying to use military means to block the airport.”

“It’s not the temporary blockage of the airport road that will determine the future of Lebanon. Lebanon has said it will not become an Iranian satellite,” he said.

A security source said the army had detained two men armed with M-16 assault rifles in Beirut.

Tension between the government and Hezbollah escalated sharply on Tuesday when the cabinet said group’s communication network was “an attack on the sovereignty of the state.”

Hezbollah said network was part of its security apparatus and had played a major role in its war with Israel in 2006.

“ARMED AND ANGRY”:Provoked by the government’s move, Hezbollah was “flexing its muscles” in the streets, said Oussama Safa, director of the Lebanese Centre for Policy Studies. “The heat has been turned up,” he said, adding that there was scope for violence.

“But it’s probably not going to unfold into war. A confrontation is not winnable,” he said.

“Things could get very ugly, but I don’t think they will spread out of hand,” added Paul Salem, director of the Carnegie Middle East Centre in Beirut. “Everyone is armed and angry.”

Hezbollah was the only Lebanese faction allowed to keep its weapons after the civil war to fight Israeli forces occupying the south. Israel withdrew in 2000 and the fate of Hezbollah’s weapons is at the heart of the political crisis.

A UN Security Council resolution that ended the 2006 war between Hezbollah and Israel bans the group from rearming and rebuilding its military infrastructure in south Lebanon.

Governing coalition leaders allege Hezbollah is spying on the airport to monitor their movements. Eight members of the anti-Syrian coalition have been assassinated since 2005.

Hezbollah has deemed Siniora’s cabinet illegitimate since its Shia ministers resigned in 2006. The governing coalition has refused to yield to the opposition’s demand for effective veto power in cabinet. The crisis has paralysed much of government and left Lebanon without a president for five months. —Reuters