Chris Gayle struck 37 - including his 8,000th one-day run.

Co-hosts Bangladesh were bowled out for 58 - their lowest one-day total - as Sulieman Benn took four wickets, with Kemar Roach and Darren Sammy claiming three apiece for the West Indies.

Junaid Siddique (25) and Mohammad Ashraful (11) were the only Tigers batsmen to make double-figures.

Chris Gayle hit his 8,000th one-day run as the West Indies reached their target having only lost opener Devon Smith.

West Indies scored 59 for 1, beating Bangladesh (58) by nine wickets.

The result makes it two successive victories for the West Indies following their opening game loss to South Africa, giving them momentum ahead of upcoming games against Ireland and England.

"I think this win will take us to the quarter-final but we still can't relax as we have couple of crucial games coming up," said Gayle.

The defeat is a crushing blow to co-hosts Bangladesh, who would have seen this game as a clear opportunity to muscle their way into a possible quarter-final spot and now face what could be a crucial match with England on 11 March.

"I don't know [what went wrong]," said Bangladesh captain Shakib Al Hasan. "We have a lot of things to work on now. We have to sit down and think about it.

"Hopefully we'll come back strongly as there are three more games. If we want to qualify for the second round, we have to win two out of three. It is still very much possible."

There was no shame for the Tigers in losing their opening game to India, and they salvaged some pride by following this with a victory, albeit unconvincing, over Ireland - but they capitulated here in front of a large but increasingly disconsolate home support.

Bangladesh have largely themselves to blame for this, for while the West Indies' utilised a good line to capitalise on movement from the pitch, the majority of the Tigers' wickets, particularly from their recognised batsmen, were down to poor shot selection rather than outstanding bowling.

"We never thought we'd bat this poorly because we've been playing really good cricket for last the 12 months and we've been consistent with the bat," admitted Shakib.

Unsurprisingly, Gayle provided the majority of the runs as the West Indies successfully chased their target in the 12th over.

The Jamaican struck 37 - including his 8,000th one-day run.