孟加拉国官员周五表示，在雨水泛滥的河流中，有许多人在一夜之间逃离家园孟加拉国冲破了至少四个堤防，淹没了数十个村庄，在近年来最严重的洪灾之一中翻了一番，达到400,000万。

大雨和河流泛滥淹没了孟加拉国北部和西北部的23个地区。当局说，自上周洪水爆发以来，至少有30人丧生。

政府已经开放了1,000多个临时避难所。但是，由于深水和缺乏通讯，许多人无法到达那里，博格拉（Bogra）受洪灾影响地区的官员莱哈纳·伊斯兰（Raihana Islam）说。

布拉马普特拉河上的三处堤防从坝下流下后，洪水恶化了。喜马拉雅山通过印度东北部进入孟加拉国，于周四晚些时候让路。

从这篇文章中可以得到什么：

Bangladeshi officials said on Friday that the number of people fleeing their homes overnight after rain-swollen rivers in Bangladesh broke through at least four embankments, submerging dozens of villages, doubled to 400,000 in one of the worst floods in recent years.
However, due to deep waters and lack of communications, many people aren't able to reach them, said Raihana Islam, an official in the flood-afflicted district of Bogra.
The floods worsened after three embankments on the Brahmaputra river, which flows down from the Himalayas, through northeastern India and into Bangladesh, gave way late on Thursday.