Nine police officers have been sentenced to death in India over the deaths in custody of a father and son in 2020.

P Jeyaraj, 58, and his son Benicks, 38, both died in jail in the southern state of Tamil Nadu - days after they were detained for allegedly keeping their mobile phone shop open in breach of lockdown rules during the Covid-19 pandemic.

The two men were stripped and ruthlessly assaulted in front of each other, the sentencing judge said on Monday - describing the case as a clear abuse of authority.

"They did this with the intention of killing," he said.

The officers, who were found guilty of murder last month, will be able to appeal against their sentences.