Unidentified gunmen opened fire at a mobile police post Russia's North Caucasus region of Ingushetia late night Monday, sources at the regional Interior Ministry told Itar-Tass. “Fire was opened at a mobile police post in the Center-KAMAZ area in the town of Nazran,” a source said. “No one among the policemen suffered in the incident, but a 33-year-old local resident was wounded and taken to hospital.” Interior forces have launched an operation to catch and detain the criminals, he said.