Syrian state media and activists says at least 14 people have been killed in a roadside bomb blast in the northwestern part of the country.

The SANA news agency says a string of explosions hit a prison truck carrying detainees in Idlib province on Saturday. The attack wounded 26 people, including a number of security personnel accompanying the prisoners.

SANA blamed the attack on “armed terrorists.” There was no immediate claim of responsibility.

As the violence continues, Syrian opposition members are pressing the Arab League to seek United Nations intervention in Syria. Head of the opposition Syrian National Council, Burhan Ghalioun, is in Cairo on Saturday for meetings with Arab League officials.

The Arab bloc is meeting on Sunday in Egypt's capital to discuss whether the future of the heavily-criticized observer mission in Syria. The Arab League is expected to extend its 165-person mission and increase its numbers.

The observers have been trying to verify if Syrian President Bashar al-Assad's government is keeping its pledge to stop the violent suppression of a 10-month-old uprising against his 11-year autocratic rule.

The United Nations says violence linked to the uprising has killed more than 5,400 people. Syria says “terrorists” have killed about 2,000 security force members since the unrest began.

Meanwhile, officials in Lebanon say Syrian security forces killed a Lebanese fisherman and wounded another after seizing the men's boat near the countries' maritime border.

The father of the slain fisherman says his wife crossed the into Syria and saw their son's body in a hospital morgue. The relative said his son's uncle is receiving treatment in the same hospital and that a third man on the boat is being held by Syrian authorities.

After the incident, dozens of angry residents gathered and tried to seal off the nearest border crossing with burning tires.