The UK Ministry of Defense said this in its latest intelligence update published on Twitter, Ukrinform reports.
British intelligence suggests that the M03 and the H32 – the two main roads into the city for Ukrainian defenders – are likely now both threatened by direct fire, following the Russian advances.
In addition, earlier in the week, Wagner paramilitary forces highly likely seized a subordinate route which links Bakhmut to the town of Siversk.
"While multiple alternative cross-country supply routes remain available to Ukrainian forces, Bakhmut is increasingly isolated," the report said.