KHULNA, Bangladesh (CMC) — West Indies captain Darren Sammy says there is no reason to panic after losing the first One-Day International of their five-match series against Bangladesh.

The Caribbean side turned in a lame batting effort to plunge to a seven-wicket defeat at the Sheikh Abu Naser Stadium, which will also host Sunday's second game.

"It does us no good hitting the alarm or panic button," Sammy said.

"We just have to admit that we got a little complacent and Bangladesh seized on the opportunity. It was the first ODI of a five-match series and we have to put things right [on Sunday]."

He added: "We have been playing good cricket for the last six to 12 months. We know what we have got to do. We have to put runs on the board and our batsmen, who have been very responsible for the last few series, will need to do it again and we need our bowlers to back it up.

"We need to get back to the basics, the things that have worked all year long for us, and put on a good display of cricket which we know we can do."

Opting to bat first, West Indies were dismissed for 199, thanks to a 57-run, ninth wicket stand between tail-enders Sunil Narine (36) and Ravi Rampaul (25), who pulled the score around from 133 for eight.

Bangladesh then had little difficulty as they coasted to their target, with aggressive opener Tamim Iqbal (58) and Naeem Islam (50 not out) leading the response.

Most of the West Indies top order fell to big shots in the deep with prized opener Chris Gayle scoring a stroke-filled 35 before falling to a catch at long on.

Sammy said West Indies batsmen had been guilty of indiscretion but backed them to turn in an improved performance from the second match.

"I think the way our batsmen, including myself, were dismissed, there were too many aggressive shots and they were not necessary at the time," Sammy conceded.

"Our shot selection obviously, was not very good, but we just had a bad day at the office, and we have got to move on and come back strong in the second ODI.

"We always have respect for our opponents — but we know if we play to our full potential we can beat any team and we will have that same confidence on Sunday. We will look to execute all the plans we had and do it properly."