 Tegetthoff arrived on 1 May and took command of the Austro-Prussian squadron, which departed for Cuxhaven two days later.On the morning of 9 May, Tegetthoff learned that a Danish squadron consisting of the steam frigates "Niels Juels" and and the corvette were patrolling off the island of Heligoland.Tegetthoff took the five ships under his command out to attack the Danish vessels, resulting in the Battle of Heligoland.