Hundreds of Syrian security forces have been killed since the beginning of unrest (File Photo).
At least three Syrian law enforcement agents have been killed in a bomb explosion in the central province of Hama, SANA reported.
An officer was also critically wounded in the blast which occurred in al-Qussour neighborhood on Friday.
Two law enforcement agents were also injured in a terrorist attack in Dara'a Province.
According to the London-based Observatory for Human Rights, six people were killed and more than 20 others were injured in clashes in crisis-hit cities, including Homs and Hama, on Friday.
Meanwhile, thousands of Syrians have rallied in the capital, Damascus, following the Friday Prayers to express support for President Bashar al-Assad and his reform program.
The demonstrators also condemned foreign interference in Syria's internal affairs and the Arab League's decision to suspend the country's membership.
Syria has been experiencing unrest since mid-March, with demonstrations being held both against and in support of President Assad.
According to the United Nations more than 3,000 people, including members of the security forces, have been killed in the turmoil.
Last week, the Syrian Observatory for Human Rights said 34 Syrian soldiers were killed in an attack by armed groups in the southern province of Dara'a. According to the observatory, 12 armed men and over 20 civilians were also killed in the clashes.
The opposition and Western countries accuse Syrian security forces of being behind the killings in the country, but the government blames what it describes as outlaws, saboteurs and armed terrorist groups for the deadly violence, stressing that the unrest is being orchestrated from abroad.