KYIV, Ukraine (AP) — The Russian military reported Monday that it shot down a Ukrainian drone approaching an air base deep inside Russia, the second time the facility has been targeted this month — again revealing weaknesses in Russia's air defenses.

Russia's Defense Ministry said debris killed three servicemen at the Engels air base, which houses Tu-95 and Tu-160 nuclear-capable strategic bomber planes that have struck Ukraine with missiles in the 10-month-old war.

Russia's Baza news outlet reported that four people were wounded and said a fire had broken out, with explosions, sirens and flas...