Thailand's Prime Minister Abhisit Vejjajiva said Tuesday evening the "red-shirts" should end their rally on Wednesday (May 12)," Thai News Agency (TNA) reported.

The "red-shirts" can not negotiate anymore, the Thai prime minister said, adding that it is legal for the government to control the anti-government rally in a bid to restore normalcy.

The "red-shirts" should return home on Wednesday, Abhisit said.

The protesters should end their rally since the general public has been negatively affected by their prolonged rally, the National News Bureau of Thailand quoted Abhisit as saying.

Also, the TNA report quoted the Center for the Resolution of Emergency Situation (CRES) as saying that if the anti-government group does not end their rally, the CRES is ready to pressure them.

The CRES said it is worried that the continued gathering of the protesters will affect resumption of classes of schools nearby the rally site.

The classes of schools will be resumed as scheduled on May 17, Education Minister Chinnaworn Boonyakiat said Tuesday.

Also, Abhisit urged the "red-shirt" group to make a final decision on the offered reconciliation roadmap.

If the protesters do not accept the roadmap, they can say no to the roadmap, Abhisit said.

In the night of May 3, Premier Abhisit addressed the nation during a live television program the government is ready to hold a new general election on Nov. 14 if conditions are met.

Dissolution of the House of Representatives could take place any day from September 15 to 30, Abhisit said.

But, core leader Natthawut Saikua said Tuesday evening the "red- shirts" will continue with the rally until Deputy Prime Minister Suthep Thaugsuban surrenders to police and is charged for ordering the crackdown on the protesters on April 10, the Bangkok Post's website reported.

The core leaders did not think Suthep had been formally charged when he reported to the Department of Special Investigation (DSI) in the morning, said Natthawut.

Jatuporn Prompan, another core leader, claimed in fact the case against Mr Suthep had not been transferred from police to the DSI.

"The UDD cannot accept the 'show' staged by the DSI and Mr. Suthep," said Nathawut.

Therefore, the "red-shirts" will not end the rally until Mr Suthep surrenders to police and enters the judicial process, Natthawut said.

At about 8:30 a.m. Suthep reported to the DSI to acknowledge charges filed against him by relatives of victims of the April 10 bloodshed.

But, the "red-shirts" immediately announced this was not acceptable to them and that the rally would end only when Mr Suthep surrendered to Crime Suppression Division (CSD) police.

The anti-government "red-shirt" rally has been held from March 12 and the protesters are now gathering at the Rathchaprasong Intersection in the center of capital Bangkok.

Totally, 27 people lost their lives and some 1,427 were wounded during the recent four major clashes between the protesters and security forces.