Thai Prime Minister Yingluck Shinawatra has rejected demands by protestors that she step down, amid fresh clashes in Bangkok.
Ms Yingluck said the demands were not possible under the constitution, but that she remained open to talks.
There were more clashes on Monday when protesters tried to storm Government House. Four people have died since 24 November.
"Anything I can do to make people happy, I am willing to do ... but as prime minister, what I can do must be under the constitution," Ms Yingluck said in a televised address.
The BBC reports the protesters want to replace the government with an unelected "People's Council".
Ms Yingluck's brother, Thaksin Shinawatra, was ousted in a military coup in 2006.
Her government took office after winning elections in 2011. Her party has broad support outside the capital.
