British mobile phone giant Vodafone on Friday said revenues dropped by nearly eight percent in the group\'s first quarter on weak sales across southern Europe, notably in the eurozone\'s worst-hit nations. Vodafone said revenue fell 7.7 percent to £10.76 billion ($16.89 billion, 13.78 billion euros) in the three months to June 30 compared with the same quarter in 2011. Vodafone chief executive Vittorio Colao pointed to \"difficult market conditions, particularly in southern Europe.\" The company noted that \"growth in Germany and Turkey was offset by declines in most other markets, in particular, Italy, Spain, Greece and Portugal.\"