Vessel originally from Libya, loaded with arms reportedly destined for Syrian opposition, is stopped by Lebanese navy.
Syrian security forces have kept heavy weapons in cities in breach of a UN-brokered cessation of hostilities, but the
government and opposition both have committed truce violations, a top UN official has said.
The 24 unarmed military observers now in Syria have seen Howitzer guns, armoured personnel carriers and other weaponry in cities, Herve Ladsous, the UN peacekeeping chief, told a press conference on Tuesday at UN headquarters.
Ladsous insisted, however, that the monitors were having an effect in cities where they have been allowed to go.
Withdrawing weapons and troops from Syrian cities was a key part of a six-point peace plan agreed by President Bashar al-Assad and UN-Arab League envoy Kofi Annan. Syria has told the UN that weapons have been pulled back.
“Regarding the heavy weapons, yes, our military observers do see a number of APCs, for instance, they see a number of Howitzers and other military equipment in most places where they are,” Ladsous said.
Syria has told the monitors that the armoured carriers have been disarmed but this has not been verified, Ladsous added.
Ladsous, a UN under-secretary, said that government forces and opposition groups have broken the truce.
“All the parties need to take further steps to ensure a cessation of violence in all its forms,” he said.
“The important fact is that violations do come from both sides,” he said while refusing to say whether one side had committed more breaches.
A separate UN official said on Tuesday that more than 34 children have allegedly been killed in Syria since the truce officially took hold last month.
“Since a truce was agreed on April 12 … and despite the deployment of United Nations ceasefire monitors, more than 34 children have allegedly been killed,” Radhika Coomaraswamy, the special envoy for children and armed conflict, said in a statement.
“I urge all parties in Syria to refrain from indiscriminate tactics resulting in the killing and wounding of children,”
The UN also said on Tuesday it was accelerating the deployment of 300 unarmed ceasefire observers to Syria to ensure all are on the ground by the end of May to monitor both sides’ compliance with Annan’s six-point peace plan.
“We have 24 observers on the ground and I fully expect this number to increase rapidly over the next two weeks so that UNSMIS [UN Supervision Mission in Syria] will build up to full operational strength by the end of May,” Ladsous said.
He said Syria has already refused visas for three proposed monitors.
Meanwhile, the UK-based Syrian Observatory for Human Rights (SOHR) said two children were among 10 people killed in a mortar attack by government forces in the northern province of Idlib.
Nine members of a single family were allegedly killed in a dawn bombardment on a village near the town of Jisr al-Shughur on Tuesday.
The attacks follow two blasts on Monday which saw two government security buildings In Idlib damaged, killing at least eight people and causing serious damage.
Syrian state media blamed the attacks on “armed terrorists”, a term it usually uses to describe those trying to overthrow President Bashar al-Assad.
In the eastern Deir al-Zor province on Tuesday, 12 soldiers were reportedly killed in clashes with opposition fighters. The SOHR said troops hit back with mortar and heavy machinegun fire, killing at least one villager and destroying a school.
Al Jazeera is unable to independently verify reports of violence, as the Syrian government has placed strict restrictions on reporting.