(SANA, Yemen)An explosion injured 50 people and killed at least 10.
（也门萨那市电）一场爆炸造成五十人受伤以及至少十人丧生。

It had occurred in a traditional weapons market in the city of Rida, Yemen.
这场爆炸案发生在也门瑞达市的一个传统武器市场。
A local reporter said there were at least 30 people dead.
一位当地记者表示，至少已经有三十人丧生。
The cause of the explosion is still unknown.
爆炸原因仍不得而知。