Hege Storhaug, HRS
Ifølge BBC settes drapene i sammenheng med et skytedrama i samme by i forrige uke, der en fallskjermsjeger ble skutt til døde i et boligstrøk, mens to soldater ble drept i en annen by om lag 4,5 mil fra Toulouse.
Witnesses told French media that one adult and two children were among the dead.
They said a man opened fire on people waiting at a school drop-off point and then fled on a motorbike.
It comes days after three soldiers were shot dead by a man on a motorbike in the same part of France.
A 30-year-old paratrooper was shot dead in a residential area of Toulouse just over a week ago, while two soldiers were killed and a third wounded as they used a cash point in the town of Montauban, some 29 miles (46km) away, on Thursday.
A correspondent at the scene for the French television network BFM said people in the area were linking the latest shootings to the attacks on the soldiers.
She said people were in «immense shock».