[1] The attack had several strategic goals, one of which was to plunder Reval's support areas in order to weaken it, in other words the coast of Nyland.

When the Tatars arrived, high winds and ice prevented them from attacking Helsinki, and instead they sent a detachment of 200 men to Porkala, where they suffered damage.

Additionally, they encountered troops under Petter Severinsson Juusten and Johannes Berndes, who managed to eventually repel the cavalry with a few cannons.

[3] After staying idle for a week, the Tatars split into smaller groups and raided the countryside of Nyland, during which they attacked Borgå, Sibbo, Esbo, Kyrkslätt, Sjundeå, and Ingå.

Despite Fleming having a large amount of cavalry and knights under his command, the Tatars had spread out in the countryside and it was increasingly difficult for him to relieve the province.