Thousands of anti-government protesters have demanded a swift investigation into the killing of four children in attacks on demonstrators.
The protesters, dressed in black-and-white mourning colours, gathered outside police headquarters in Bangkok on Wednesday to call for justice for four children, aged between four and six, who died in two separate grenade attacks at the weekend.
The demonstration was headed by Suthep Thaugsuban, the leader of the People's Democratic Reform Committee (PDRC). It has been staging protests since early November to try to bring down the government of caretaker Prime Minister Yingluck Shinawatra.
National Police chief Police General Adul Saengsingkaew met representatives of the PDRC and promised to speed up investigations into the children's deaths.
"We are not challenging the police, just asking for their co-operation," PDRC spokesman Akanat Promphanm said.
Although largely peaceful and geared towards acts of civil disobedience, the movement's near daily demonstrations have led to several clashes with authorities and attacks on rally sites.
At least 21 have died and more than 700 have been injured in the past four months, according to government and media figures.
To date, no one has been arrested for the attacks on the demonstrators.
The government has blamed "extremists" within the PDRC, who are trying to foment chaos and hatred.
The children's deaths and a rise in protest-related violence since last week prompted Army Chief General Prayuth Chan-onca to make a televised statement on Monday calling on both sides of the conflict to resolve their differences through negotiations.
