Syria has said it will not use chemical and biological weapons against Syrians but would use them against foreign "aggression".
At a news conference in Damascus on Monday, foreign ministry spokesman Jihad Makdissi said that Syria was in "self defence" mode but ruled out use of the weapons even against rebels fighting President Bashar al-Assad's regime.
Hadi al- Abdallah, an activist in Homs, says that Makdissi's statement "is very dangerous".
Speaking to Al Jazeera, he said: "It seems that this is a preface from Jihad Makdissi that the regime may use chemical weapons. He pre-empted the attack and accused armed gangs. Where can armed gangs get chemical weapons from?"