Ethiopia has declared a state of emergency following months of often violent anti-government protests, especially in the restive Oromia region.
"A state of emergency has been declared because the situation posed a threat against the people of the country," Ethiopian Prime Minister Hailemariam Desalegn said on state-run television on Sunday.
Local media said the state of emergency, declared for the first time in 25 years, will last for six months.
What is triggering Ethiopia's unrest?
Earlier on Sunday, the state Ethiopian Broadcasting Corporation reported that the state of emergency was effective as of Saturday evening as a means to "deal with anti-peace elements that have allied with foreign forces and are jeopardising the peace and security of the country".
It added that that the Council of Ministers discussed the damage by the protests across the country and declared the state of emergency in a message delivered to Hailemariam .
Protests reignited this week in the Oromia region - the main focus of a recent wave of demonstrations - after dozens of people were killed in a stampede on October 2, which was sparked by police firing tear gas and warning shots at a huge crowd of protesters attending a religious festival.
The official death toll given by the government was 55, though opposition activists and rights groups said they believe more than 100 people died as they fled security forces, falling into ditches that dotted the area. 
According to government officials, factories, company premises and vehicles were burnt out completely or damaged during the rioting. Many roads leading to the capital, Addis Ababa, were reported to be blocked.
Ethiopia's government, a close ally of the West, has often been accused of stifling criticism by arresting and detaining thousands of people.
According to the New York-based Human Rights Watch group, at least 500 people have been killed by security forces since anti-government protests began in November.
The government has denied that violence from the security forces is systemic, and in August, rejected a United Nations request to send in observers, saying it alone was responsible for the security of its citizens.

Months of protests

The anti-government demonstrations started in November among the Oromo, Ethiopia's biggest ethnic group, and later spread to the Amhara, the second most populous group.
Though they initially began over land rights, they later broadened into calls for more political, economic and cultural rights.
Both groups say that a multi-ethnic ruling coalition and the security forces are dominated by the Tigray ethnic group, which makes up only about 6 percent of the population.
The government, though, blames rebel groups and foreign-based dissidents for stoking the violence.
Source: Al Jazeera News And News Agencies