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Police in India have detained five people in connection with an explosion and fire at a Hindu temple in Kerala that killed more than 100 people.
The five men who work at the Puttingal temple in Paravur, are being questioned about an unauthorised fireworks display that sparked the massive explosion.
Authorities have already ordered a judicial inquiry into the incident.
Nearly 400 others were injured near the temple when a faulty rocket fell onto a large stockpile of fireworks.
A building at the temple then collapsed, causing many of the deaths.
Thousands had gathered to watch the display as part of a local new year festival.
Officials say the temple had been denied permission on safety grounds, but it had gone ahead under pressure from a large crowd.
"Five workers have been detained for questioning," Kollam police chief P Prakash told AFP news agency.
"These are not formal arrests. Once they are questioned, only then we will know their involvement and take further steps."
Indian Prime Minister Narendra Modi, who visited the scene and spoke with victims in local hospitals, said the incident was "heart-rending and shocking beyond words".
"The incident is so grave that it is very difficult to describe in words," he added. "People who were 200 metres away were also hurt."
In pictures: India temple fire
Image caption Prime Minister Narendra Modi said the incident was 'shocking beyond words'
The explosion happened at about 03:30 (22:00 GMT Saturday), hours after the event started in Kollam district.
Outside the Puttingal temple there was an eerie silence the night after the fire tragedy.
Rubble and firecracker shells were scattered all over the ground. And shoes. Lots of them.
A pink flip-flop, one black sandal, a white sports shoe that's upside down - they were all lying not far from each other, all signs of the mad scramble that erupted as people tried to save themselves.
There were scenes of chaos as emergency teams were slow in reaching the area and rescue teams used bulldozers to clear the area looking for survivors.
A power outage hit the complex after the first explosion, further complicating rescue efforts.
Image caption Many of those killed were crushed when a building collapsed
Image caption The temple had been denied permission on safety grounds to hold the fireworks display
Many of the dead were charred beyond recognition and would have to be identified by DNA tests, said Kerala police chief TP Senkumar.
The temple had been denied permission on safety grounds to hold the fireworks display but it had gone ahead under pressure from the crowd, officials said.
Police are planning to take action against the temple administration and the contractors who were putting on the display.
Kerala's government said it had ordered a judicial inquiry that would work alongside the police's criminal investigation.
The incident happened as the Duke and Duchess of Cambridge arrived in Mumbai for a seven-day tour of India and Bhutan, and Kensington Palace said the couple's thoughts were with those assisting victims.
Kerala is in the middle of an election for a new state assembly, but political parties have called off campaigning as a mark of respect for the victims.
Religious festivals incidents in India.