Russia has begun targeting Ukraine's border crossings with its Western allies in recent weeks, part of a growing campaign by both sides to erode the other's economic infrastructure. Foreign politicians had earlier been on a train on the same line, returning from a summit in Kyiv Key points and original sources are listed below.

• Russia has begun targeting Ukraine's border crossings with its Western allies in recent weeks, part of a growing campaign by both sides to erode the other's economic infrastructure.S1

• Foreign politicians had earlier been on a train on the same line, returning from a summit in KyivS2

• KYIV/MOSCOW Sept 13 (Reuters) - Russia attacked a truck near Ukraine's border with Poland, Polish and Ukrainian officials said on Sunday, the latest strike to hit areas near NATO as Moscow and KyivS3

• KYIV, Sept 13 (Reuters) - A Russian drone struck near the Ukrainian-Polish border in the small town of Yahodyn overnight, Ukraine’s Foreign Minister Andrii Sybiha said on Sunday. The ministerS4