According to AIS data from marinetraffic.com, five Ropucha-class landing ships and one Ivan Gren-class landing ship were sent by the Russian Baltic Fleet. The ships are believed to be on their way to the English Channel.
Marineschepen reported that “oversight was then taken over by Belgian and British warships”.
On Monday, three Ropucha-class ships were spotted crossing the Denmark Strait.
On Tuesday, two additional Ropucha-class ships and the Ivan Gren-class ship also made the transit, according to the UK Defense Journal.
According to Armchair Admiral, the French Navy is also tracking Russian ships alongside the Royal Navy’s HMS Dragon.
It comes after Defense Secretary Ben Wallace announced the UK would supply defensive weapons systems to Ukraine as the war of words between Moscow and Kiev escalates.
Tensions between Moscow and Kiev reached a boiling point last year after Russia amassed more troops near disputed borders.
Since 2014, more than 14,000 people have been killed in the conflict in eastern Ukraine.
In September, Ukrainian President Volodymyr Zelenskiy warned that all-out war with Russia could be a “possibility”.
READ MORE: UK must enter ‘crisis mode’ as tensions between Ukraine and Russia rise
“Ukraine has every right to defend its borders and this new aid package further strengthens its ability to do so.
“Let’s be clear: this support is for short-range, clearly defensive weapon capabilities; they are not strategic weapons and pose no threat to Russia; they are to be used in self-defense.”
The Defense Secretary said any invasion by Russia would be considered an “occupation”.
He added: “I fear this will lead to a huge loss of life on all sides.
“The current difficult relationship with the Kremlin is not the one we want it to have with the UK, it doesn’t have to be that way.”
He went on to point out the commonalities between the two countries.
Mr Wallace had previously invited his Russian counterpart, Sergey Shoygu, to visit London “in the coming weeks”.
He said, “We stand ready to discuss issues related to mutual security concerns and to engage constructively and in good faith.”
Mr Wallace continued: “We want to be friends with the Russian people as we have been for hundreds of years.
“And there is a world where we can build a mutually beneficial relationship with Russia.
“I still hold out hope that diplomacy will prevail.
“It is President Putin’s choice to choose diplomacy and dialogue or conflict and consequences.”