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Hundreds of protesters trying to topple Pakistan's government briefly seized the state broadcaster on Monday, intensifying the political crisis gripping the nuclear-armed nation. Transmissions of the main Pakistani Television (PTV) were cut after protesters armed with clubs stormed the building in Islamabad's high-security "red zone", before being removed by security forces after around half an hour. The dramatic occupation came after fresh street clashes between riot police and followers of opposition politician Imran Khan and populist cleric Tahir-ul-Qadri, in which officers were pelted with rocks and responded with teargas.
By Richard Balmforth and Pavel Polityuk KIEV (Reuters) - Ukraine's military said on Monday its forces were battling a Russian tank battalion for control of a vital airport in the east of the country as President Petro Poroshenko accused Moscow of "direct and open aggression" against his country. Ukrainian coastguards meanwhile searched for two seamen missing after one of their patrol boats was sunk in the Sea of Azov by artillery fire from pro-Russian separatists on the shore. Several hundred Ukrainian forces are bogged down near Ilovaysk, east of the region's main city of Donetsk, and have been trying to break out of encirclement by Russian-backed separatists for several days. Poroshenko, speaking at a military academy in Kiev, said Russia's direct involvement in the war against the separatists in eastern Ukraine had tipped the balance on the battlefield and was the main reason for recent reversals.