Yemeni opposition politician Mohammed al-Qahtan vowed Saturday to escalate the demonstrations against President Ali Abdullah Saleh to bring him to justice, DPA reported.
"The best thing the Yemenis can do is to arrest him (Saleh) and put him on trial," said al-Qahtan, the spokesman for the opposition umbrella coalition, the Joint Meeting Parties.
Millions of Yemenis have taken to the streets since February, demanding an end to Saleh's 33-year rule.
Recent mass protests were staged in several provinces of the Arabian Peninsula country, demanding the international community prosecute Saleh for alleged crimes against humanity.
At least 1,480 people were killed in Yemen between February and September, according to government figures.
Local media reported Saturday that Saleh has given the opposition a three-day deadline to initiate talks with the government before he signs a deal brokered by the Gulf Cooperation Council countries for a peaceful power transfer.
"We, the opposition, are paying no attention to this deadline. We laughed at it," said al-Qahtan. "Saleh should leave Yemenis for their own. He should realize that he is no longer the president."
Meanwhile, on Saturday, two people were killed in the Arhab district in the capital Sana'a in a raid by the elite Republican Guards, reported the opposition alsahwa-yemen.net.
Saleh's forces used Katyusha rockets and artillery shells in the raid, said the report.
Elsewhere, at least four soldiers were injured Saturday when unknown gunmen attacked the general security headquarters in the southern city of Aden, a security source told the independent Yemeni website Adenalghad.
Aden has recently seen an upsurge in violence targeting security personnel.
On Friday, a senior police official was killed in Aden in an ambush that the authorities blamed on al-Qaeda.