corruption. eruption. including declaring a state of emergency after a third night of escalating violence and rioting in cities and towns across france. hundreds of police were injured last night and more than 900 people arrested. across france tonight, public transport has been suspended and some major events cancelled as the government tries to stop scenes like this taking place for the fourth night running. the protests began in a paris suburb on tuesday when a police officer shot dead a 17 year old boy of north african descent during a traffic stop in the nanterre. footage of the shooting was posted online. the unrest quickly spread across france, fuelled by accusations of police racism and wider discrimination against minority communities. around 115,000 police officers have now been deployed on the streets. from paris here s our europe editor katya adler. paris, supposed to be the city of love, is exploding again into hateful confrontation. riot police versus angry y