The French military invaded Antananarivo in September 1894, prompting the queen's surrender after a cannon shell blasted a hole through a building at the Rova, causing major casualties. The damage was never repaired. Andohalo square was remodeled to feature a gazebo, walkways, and planted landscaping. Claiming the island as a colony, the French administration retained Antananarivo as its capital and transcribed its name as Tananarive. They chose Antaninarenina as the site for the French Governor General's Residency; upon independence it was renamed Ambohitsorohitra Palace and converted into presidential offices. Under the French, tunnels were constructed through two of the city's largest hills, connecting disparate districts and facilitating the town's expansion. Streets were laid with cobblestones and later paved; sewer systems and electricity infrastructure were introduced. Water, previously obtained from springs at the foot of the hill, was brought from the Ikopa River.