( CNN ) -- Two hostages were injured at a bank in Lima , Peru , before a police sniper killed a man who held 33 people there for seven hours , state media reported . Moments before shooting the hostage-taker Friday night , police SWAT teams helped four bank employees escape through a window , Interior Minister Miguel Hidalgo told the government 's Andina news agency . `` This opening allowed us to get in position , use authorized weapons and end this drama , '' he said . The man threatened staff and clients at the downtown bank with a gun and an explosive strapped to his chest , the news agency reported . He demanded 2 million soles ( $ 714,000 ) and a helicopter as a condition for their release . At least two hostages were wounded in the standoff , Hidalgo said -- one with a gunshot wound and another who was injured after being hit in the head with a revolver . Hidalgo praised the rescue operation , saying the gunman had been `` uncompromising '' and left police no choice but to shoot him . A bomb squad entered the bank after hostages had been evacuated to detonate the explosive the gunman had used to threatened the hostages , Andina reported . The bank is located in Gamarra , Lima 's textile and garment district , a poor part of the city with a high crime rate . Journalist Naomi Mapstone contributed to this report .
Police say the attackers demanded money and threatened hostages . The hostages are shot through a window before they enter the bank . Peru 's interior minister praises the operation . The bank is located in Lima 's textile and industrial district .