The Kizlyar-Pervomayskoye hostage crisis, known in Russia as the terrorist act in Kizylar was a guerrilla raid conducted by the Chechen separatists in January 1996 during the First Chechen War, which soon turned into a massive hostage crisis involving thousands of civilians.
The crisis culminated in a days-long fierce battle for the Dagestani border village of Pervomayskoye, resulting in the village of 1,200 people being completely destroyed by the Russian bombardment, while the rebels escaped with some of their hostages including captured servicemen. More than 100 people died during the crisis, including at least 41 civilians.
On January 9, 1996, "Lone Wolf" unit led by the Chechen separetist commander Salman Raduyev, allegedly acting on Dzhokhar Dudayev's order, launched a copycat raid in the style of the Budyonnovsk hospital hostage crisis against the helicopter military airfield and later a civilian hospital in the city of Kizlyar located in neighbouring republic of Dagestan.
A field commander Khunkar-Pasha Israpilov later said that he took over command of the operation from Raduyev after the latter failed in his mission to destroy the federal airbase, ammunition factory and other military and police installations in and around the city. Only two or three helicopters were blown up at the airbase, but at least 33 people were killed in the assault and scores were injured.
All but about 120 of captives were released the next day, after Russian authorities said they rebels must first release the hostages to get granted a safe passage back to Chechnya. About 160 hostages, some of them reportedly volunteers, were carried along by the guerrillas to act as human shields in order to deter Russian ambush along the route.
Read more about the long and bloody history of Chechen 'rebels' habit of hostage taking.
Also read, Russia: A Timeline Of Terrorism Since 1995.