government protesters stormed Friday into a telecom company compound where authorities had shut down their vital TV channel, as soldiers and riot police failed to hold them back with tear gas and water cannons. It was the first use of force by the government in monthlong protests aimed at ousting Prime Minister Abhisit Vejjajiva and forcing new elections. At least 10 protesters and three security personnel were injured in the brief confrontation in a northern Bangkok suburb, The Nation newspaper said on its website. Hurling rocks and Molotov cocktails, the “Red Shirt” protesters breached the barbed-wire perimeter of Thaicom Public Co. Ltd. within minutes, though they were not immediately able to enter the main building. As they moved into the compound, security forces threw tear gas canisters and fired water cannons but then quickly retreated into the main building as thousands of protesters swarmed around it. Red Shirt leaders then attempted to negotiate with police to get the People Channel, or PTV, back on the air, while many protesters headed back to downtown Bangkok after hearing rumors that the military would try to clear demonstrators out of one of their encampments in the capital. Government spokesman Panitan Wattanayagorn indicated that PTV would remain shut down, saying, “We will restore their signals only when they report the truth again.” After the clash, some security forces were seen throwing down their shields and riot gear and shaking hands with the protesters. In recent weeks, police have frequently shown sympathy with the protesters and analysts say the security forces, especially the police, are split in their loyalties, making it difficult for the government to enforce its orders. The Red Shirts offered water to soldiers and police, and showed reporters a small cache of weapons, including M-16 assault rifles and shotguns, they had seized from soldiers. On Friday, the Criminal Court issued arrest warrants for three leaders for seizing the commercial district, the official Thai News Agency said. A total of 27 warrants have now been issued but no leaders are known to have been taken into custody.