"We can launch rockets from down here but that's not the best way," she said.
Hamas television said the three had launched rockets against Israel.
Their most important use are attacking ships or launching rockets.
There are also plans to launch several international rockets from Alcântara.
It is capable of launching 240mm rockets from 12 launch tubes.
The industry has also had two failures in launching sub-orbital rockets.
The military said it fired on a Palestinian cell that was launching rockets and identified a hit.
More than 90 homes, said by the army to have been used to launch rockets or harbor militants, were destroyed.
Still, the number of objects grew as more nations launched rockets and satellites into orbit.
It came shortly after Hezbollah fighters launched rockets from a garden area near her house.
