A renewed bout of buying interest gripped the USD/JPY pair in early Europe, although the upside lacked momentum as UK polling stations open for Brexit vote.USD/JPY eyes 105 handleThe US dollar is seen advancing further against the Japanese yen in early Europe, largely on the back of persisting Bremain sentiment, as Britons queue up at the polling stations for the historical EU referendum. At the time of writing, USD/JPY trades at 104.68 levels, fading a spike to 104.75, still up 0.26% on the day. Meanwhile, the Nikkei 225 index closed up 1.07% at 16,238 points.All eyes continue to remain on the Brexit-related news flow as Brexit polls begin and will last until 2100GMT, with is no broadcaster exit poll.USD/JPY Technical levels to watchIn terms of technicals , the immediate resistance is located at 104.94/98 (10-DMA/ daily top). A break above the last, the major could test 105.31/50 (daily R2). While to the downside, the immediate support is seen at 104.53 (5-DMA) and below that at 104 (round number).