Violence has erupted in Lebanon's capital, Beirut, with clashes between government supporters and the Hezbollah-led opposition.
The fighting started after Hezbollah leader Hassan Nasrallah said he would "cut off the hand" that tried to dismantle the telecommunications network - a move announced by the government.
Beirut has been largely paralysed by roadblocks set up by opposition supporters.
Protesters threw stones, barricaded streets and set tyres and vehicles on fire.
The army fired tear gas to disperse protesters, and patrolled in armoured personnel carriers.
The United Nations has appealed for calm, and Sunni leader Saad Hariri has called on Hezbollah to work towards a solution to the conflict.
The government and opposition have been locked in a 17-month power struggle, which has meant Lebanon being without a head of state for the past five months.