The cause of the blast in the city of Makhachkala is not clear.

马哈奇卡拉市发生爆炸的原因尚不清楚。

Gun battles erupted around the Assumption Cathedral in Makhachkala, with heavy automatic gunfire ringing out late into the night.

马哈奇卡拉圣母升天大教堂周围爆发枪战，重型自动枪声一直响到深夜。

In the Caspian Sea city of Makhachkala, around 75 miles north, attackers shot at a traffic police post and attacked a church.

在以北约75英里的里海城市马哈奇卡拉，袭击者向一个交警哨所开枪，并袭击了一座教堂。