Sales of the PlayStation 3 (PS3) in Japan dropped further in the week to 21 January as the games market there suffered from lacklustre demand, according to data published today. The PS3, which is due to launch in the UK on 23 March, suffered its worst week of sales since launch for the second week in a row.

A total of 21,105 of the consoles were sold during the week, said Media Create, which receives data from around 3,000 stores across Japan.

Sales of the PS3 were highest during the launch weekend, when 81,639 were sold over two days, the company estimates. The sales dropped and then peaked again at 76,992 units in the last week of 2006. But sales have dropped each week since the new year, according to Media Create.

Sony said last week that shipments of the PS3 in Japan reached 1 million on 16 January. The sales figures appear especially poor when compared to the company's ageing but lower-cost PlayStation 2. Media Create estimates that 20,169 PS2s were sold during the same week, only slightly less than the PS3 sales.

Sales of the Nintendo’s rival Wii console were 86,395 for the week to 21 January, Media Create said. That's also down on the prior week. Xbox 360 sales also dropped, to 7,041 consoles.