ON-DON, Russia, Oct 7, SPA-- Unknown assailants shot and killed a Chechen policeman in his home near the provincial capital, Grozny, and one Russian soldier was killed in a land mine explosion, the Chechen Interior Ministry said Friday, according to AP. Investigators believe the policeman was killed Thursday in connection with his work escorting prisoners, the Interior Ministry press service said. The soldier was killed Friday as his explosives unit was conducting engineering and reconnaissance work along the Chechen stretch of the Kavkaz federal highway. Three other soldiers were wounded in the blast.