Bangladesh threw away the chance to record a consolation victory against Pakistan in the third and final one-day international in Chittagong on Tuesday.
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The hosts, having bowled out Pakistan for just 177, looked well set at 61 for one after 15 overs of their reply only for a power failure to plunge the stadium into darkness and derail the Bangladesh chase.
From a position of strength they collapsed to 119 all out as the tourists completed a 3-0 series win with a 58-run triumph.
A Bangladesh win seemed a formality when Shahriar Nafees and Mahmudullah came together following the first-ball departure of Tamim Iqbal.
Both men scored at a steady rate with the Pakistan attack offering little threat on a track which heavily favoured the spinners.
However, the game changed completely following a 20-minute break with the lights going out, literally, on Bangladesh.
Shahriar departed leg before wicket to Saeed Ajmal for 25 following the resumption after misjudging an attempted sweep while Mohammad Hafeez accounted for Mahmudullah (35), trapped leg before on the back foot.
From there it was a procession as Pakistan rattled through the middle and lower orders.
Only Alok Kapali with 12 and Farhad Reza 21 offered any kind of resistance but it was not enough.
Shoaib Malik was the pick of the Pakistan bowlers, recording remarkable figures of three for six from four overs, while Hafeez chipped in with three for 27 from 10.
Abdur Rehman and Saeed Ajmal clamed two wickets each.
It was a disappointing reply by a Bangladesh side which looked so good earlier in the day.
Pakistan secured an unassailable 2-0 lead in the series on Saturday but struggled from the outset on a turning wicket.
They recovered from 39 for three thanks to a 94-run partnership between Misbah-ul-Haq and Umar Akmal, but then lost their last seven wickets for 44 runs.
Hafeez went for a duck in the first over, chipping a slower ball from Shafiul Islam into the covers, and Asad Shafiq made just seven before he was bowled through the gate by Shakib Al Hasan.
Younus Khan had made a steady 26 before he edged behind off Abdur Razzak to leave his side in trouble.
Misbah (47 from 89 balls) steadied the ship in typical fashion along with Akmal (57 from 84 balls), but the captain then played at a wide delivery from Razzak and steered the ball to short extra-cover.
Akmal attempted to improve the scoring rate but completely missed a delivery from Elias Sunny and was easily stumped, while
Malik lasted just two balls before hitting a return catch to Razzak.
Shahid Afridi (nine) perished attempting a typical big hit and none of Pakistan's last six batsmen reached double figures.