北京北部一架民用直升机坠毁

A helicopter crashed near Jixiangsi bridge in Beijing around 11 a.m. on Monday, according to the Beijing Youth Daily.

据《北京青年报》报道，周一上午11点左右，一架直升机在北京吉祥寺大桥附近坠毁。

Four people on board were injured and sent to the hospital immediately.

机上4人受伤，被立即送往医院。

An eyewitness was quoted as saying that the helicopter hit the ground nose first with a loud bang and broke into two.

一名目击者说，直升机先是砰的一声撞上了地面，然后撞成两半。

A rescue team and firefighters have rushed to the site.

救援队和消防队员随即赶到了现场。

The cause of the incident is under investigation.

事故原因正在调查中。