Hundreds of people living in Prague’s Dejvice district have been at risk from E.coli bacteria which was found to be present in tap water in the area following water-pipe maintenance. The authorities reportedly pasted warnings on all blocks of flats and houses in the district, but it is not clear if the warning reached all inhabitants at risk. A number of people in the area are reportedly suffering from headaches, nausea and indigestion. Prague 6 city hall has criticized the city’s waterworks for failing to report the problem so that it could warn its citizens properly. According to latest reports only one block of flats remains at risk, all other tests on tap water have proved negative.