Sony Corp. said Tuesday its group net profit plunged 47.4 percent to ¥35 billion in the April-June quarter from a year ago amid fierce competition in the consumer electronics sector, including compact digital cameras and computers.

The group's operating profit meanwhile dropped 39.5 percent to ¥73.4 billion.

Sony cited a sharp decline in profit at its Sony Ericsson unit due to slowing mobile phone sales in Europe as another factor dragging down the group's profits.