Swedish authorities urged grocers to trace the sources of their cucumbers after Germany linked an outbreak of E. coli to two cucumber farms in southern Spain. \"It is very important that companies that handle vegetables, especially cucumbers, track their produce and look into their origins,\" Alexander Sobestiansky of the National Food Administration told news agency TT. \"Companies are responsible for the produce that they sell.\" While there are no indications any of the contaminated cucumbers have found their way from Germany to Sweden, officials said it was still important that grocers be vigilant. \"They could have got here through other channels,\" Sobestiansky said. Germany has reported 276 cases of E. coli infection, two of them fatal, TT reported.