Istanbul: An explosion of unknown origin rocked the historic centre of Istanbul on Tuesday, causing casualties, reports said.
Turkish authorities suspect a terror attack was the cause of Tuesday's blast in the main tourist hub of Istanbul that has left 10 people dead, a government official said.
"Terrorist links are suspected," the officicial told AFP, asking not to be named, after the explosion in the Sultanahmet district of Turkey's biggest city.
Ambulances and police were despatched to Sultanahmet, the city's main tourist hub, which is home to world-famous monuments including the Blue Mosque and the Hagia Sophia, television reports said.
The blast came after a slew of deadly attacks across Turkey in past months that has left Turkey's largest city on edge.
The force of the blast was sufficient to be heard in adjacent neighbourhoods, witnesses told AFP. TV reports said several were wounded but there was no further detail on the toll.
Turkey is on alert after 103 people were killed on 10 October when two suicide bombers attacked a crowd of peace activists in the capital Ankara, the bloodiest strike in the country's modern history.
That operation was blamed on Islamic State (IS) jihadists, as were two other bloody assaults in the country's Kurdish-dominated southeast earlier in the year.
Turkish authorities have in recent weeks detained several suspected IS members with officials saying they were planning attacks in Istanbul.
But Turkey is also waging an all-out assault on the outlawed Kurdistan Workers' Party (PKK) which has staged dozens of deadly attacks against members of the security forces in the southeast of the country.
A Kurdish splinter group, the the Freedom Falcons of Kurdistan (TAK) claimed a mortar attack on Istanbul's second international airport on December 23 which killed a female cleaner and damaged several planes
Meanwhile the banned ultra-left Revolutionary People's Liberation Party-Front (DHKP-C) has also staged a string of usually small-scale attacks in Istanbul over the last months.
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Updated Date: Jan 12, 2016 17:45:00 IST