Yerevan, Oct. 18 -- Hours after announcing humanitarian ceasefire, Armenia accused Azerbaijan of violating it in the troubled Nagorno-Karabakh region.

"Once again violating the humanitarian ceasefire, the enemy fired artillery shells in the northern direction from 00:04 to 02:45 [from 20:04 to 22:45 GMT on Saturday], and fired rockets in the southern direction from 02:20 to 02:45," Armenian Defense Ministry's spokeswoman Shushan Stepanyan tweeted in the early hours of Sunday.

Azerbaijan has not responded to the allegations.

On Saturday, the Armenian Foreign Ministry informed that Armenia and Azerbaijan had agreed to declare a ceasefire from Sunday midnight.

"The Republic of Armenia and the Republic of Azerbaijan have agreed to a human...