Russia tightens security in region of Ukraine incursion as fighting persists

The Russian military said it was undertaking counter-terror measures (Russian defence ministry press service via AP)

Moscow has announced a “counter-terrorism operation” to increase security in the border region where an incursion this week by Ukrainian forces caught Russian troops off-guard and exposed military vulnerabilities.

The Russian defence ministry said fighting was continuing in the Kursk region and that the army has conducted air strikes against Ukrainian forces, including using a thermobaric bomb that both causes a blast wave and creates a vacuum that suffocates its targets.