HYDERABAD, Dec 1 (IANS): Telangana Rashtra Samiti (TRS) activists on Wednesday set ablaze Congress party leader and former union minister Renuka Chowdhury's office in Khammam town, about 200 km from here.

The door and windows of the office were damaged when TRS workers torched the office after throwing petrol on it, police said.

TRS wants to break away from Andhra Pradesh and form a separate Telangana state.

A group of TRS workers fled after setting the office on fire. Acting swiftly, security personnel brought the fire under control.

Police recovered a letter written by TRS workers threatening to carry out more such attacks to protest the arrest of their party president K. Chandrasekhara Rao, who is popularly known as KCR.

Tension gripped Khammam as KCR continued his 'fast unto death' in a government-run hospital in Khammam demanding a separate Telangana.

KCR, who was arrested on Sunday and sent to judicial custody for 14 days ahead of his 'fast unto death', launched the hunger strike in Khammam sub-jail. He was shifted to the hospital Monday.

Renuka Chowdhury, a former MP from Khammam, is against the demand for a separate state.