At least 10 people were hurt, one seriously, when a grenade was thrown in a cinema in a town in India's north-eastern Assam state, police said. The attack occurred early on Wednesday afternoon in Tinsukia, 580km (360 miles) east of state capital, Guwahati.
The owner of the Paradise cinema said someone threw the grenade from the balcony as the show began.
Separatist groups in the north-east have called for a ban on Hindi films, claiming they harm local culture.
Armed groups
The Press Trust of India news agency was reporting as many as 23 people were injured in the attack.
This is the first major blast inside a movie hall since the call was made but no group has yet said it carried out the attack.
Movie hall owners continued to show the popular films despite the threat.
Many say they would face ruin if they could not show Hindi films.
The movie playing at the Paradise hall was called Honour, and was about police corruption.
There are about a dozen armed groups fighting authorities in the north-east.
They accuse the central federal government of draining resources and neglecting local economies.
More than 10,000 people have died in separatist violence in Assam since the 1980s.
One-Minute World News 
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