Международный

Commemorations are under way in Armenia to mark the centenary of the start of killings of Armenians by Ottoman Turks.

A ceremony is taking place at the memorial for the victims on the outskirts of the capital, Yerevan, with guests laying flowers.

The presidents of Russia and France are in the country for the commemorations.

Turkey strongly objects to the use of the term genocide to describe the killings and the dispute has soured relations between Turkey and Armenia.

Turkey accepts that atrocities were committed but argues there was no systematic attempt to destroy the Christian Armenian people. Turkey says many innocent Muslim Turks also died in the turmoil of war.

A memorial service will also be held in Turkey on Friday and its prime minister, Ahmet Davutoglu, has said the country will "share the pain" of Armenians.

However, he has reiterated Turkey's stance that the killings were not genocide.

Canonisation

The BBC's Rayhan Demytrie in Yerevan says Friday marks the 100th anniversary of the day the Ottoman Turkey authorities arrested several hundred Armenian intellectuals in Constantinople, today's Istanbul, most of whom were later killed.

She says the Armenians regard this as the beginning of the Ottoman policy of mass extermination of Christian Armenians suspected of supporting Russia, the Ottoman Empire's World War One enemy.

Friday's commemorations will be attended by Russian President Vladimir Putin and France's President Francois Hollande.

US President Barack Obama issued a carefully worded statement for the anniversary, referring to "one of the worst atrocities of the 20th Century", without using the term genocide.

During his 2008 presidential election campaign, then senator Obama had vowed to "recognise the Armenian genocide" and in his new statement said: "I have consistently stated my own view of what occurred in 1915, and my view has not changed."

However, his phrasing has angered Armenian Americans.

Bryan Ardouny, executive director of the Armenian Assembly of America, said in a statement: "President Obama's exercise in linguistic gymnastics on the Armenian genocide is unbecoming of the standard he himself set and that of a world leader today."

On Thursday the Armenian Church canonised the 1.5 million people it says were killed in the massacres and deportations.

It said it wanted to proclaim the martyrdom of those who died for their faith and homeland.

After the ceremony, bells tolled in Armenian churches around the world.

Also on Thursday, German President Joachim Gauck described the killings as genocide, on the eve of a debate in the German parliament on the issue.

Earlier this month, Turkey recalled its envoy to the Vatican after Pope Francis also used the word genocide in a reference at a Mass at St Peter's Basilica.

France has been a strong advocate of recognising the killings as genocide and President Hollande has pushed for a law to punish genocide denial. The issue has strained Franco-Turkish relations.

What happened in 1915?

Hundreds of thousands of Armenians died in 1915 at the hands of the Ottoman Turks, whose empire was disintegrating.

Many of the victims were civilians deported to barren desert regions where they died of starvation and thirst. Thousands also died in massacres.

Armenia says up to 1.5 million people were killed. Turkey says the number of deaths was much smaller.

Most non-Turkish scholars of the events regard them as genocide - as do more than 20 states, including France, Germany, Canada and Russia, and various international bodies including the European Parliament.

Turkey rejects the term genocide, maintaining that many of the dead were killed in clashes during World War One, and that many ethnic Turks also suffered in the conflict.