The police specifically called on anyone who has been outside on Sunday morning between 5 a.m. and 8 a.m. in the vicinity of De Schie, Rijnlaan, Beukenstraat, Esdoornstraat, Rembrandtlaan and Ruusbroecstraat, or has cameras, to make information and images available to the police. These streets form the walking route the woman walked before she was attacked. The police are particularly interested in two walkers who pass by on camera images at 5.40 am and 6.15 am respectively in Beukenstraat and Ruusbroecstaat. They may be important witnesses who may have seen something, the police think.