Twin blasts kill dozens in Ankara

Twin blasts have killed at least 86 people in the Turkish capital, the interior ministry reports.

The explosions occurred at two sides of the exit of Ankara’s main train station, in the city centre. More than 180 people were wounded.

Turkish government officials say they are treating the incident as a terrorist attack and are investigating claims a suicide bomber carried it out.

A video on social media showed the moment of one explosion: young people were dancing and waving banners as a massive fireball erupts:

# Ankaraday?z Emek, Bar?? ve Demokrasi Mitingindeki patlama an? videosu #dokuz8 / @meliketmbk pic.twitter.com/it3dodESKz

— dokuz8 (@dokuz8haber) octubre 10, 2015

Turkey's President Recep Tayyip Erdogan strongly denounced the attack.

"I strongly condemn this heinous attack on our unity and our country's peace," Erdogan said in a statement posted on the presidency's website.

"No matter what its origin, aim or name, we are against any form of terrorist act or terrorist organisation. We are obliged to be against it together," Erdogan said.

The rally was organised by several leftist groups, including the pro-Kurdish Peoples' Democratic Party (HDP).

The attack came with Turkey on edge ahead of November 1 polls and a wave of unrest over the past few months.