BEIRUT -- Syria's foreign minister on Monday criticized neighbouring Jordan, which recently stepped up airstrikes against Islamic State group targets in Syria, and said his country does not need outside help in battling militants.

Walid al-Moallem also told reporters that Damascus will not accept Jordanian or other foreign ground troops crossing into Syria to fight.

There has been no mention of any international troops offering to go into Syria to fight the Islamic State group. Jordan has, however, vowed to retaliate harshly for the slaying of one of its pilots, who was burned alive by the Islamic State group militants last week.

"We will not allow anyone to violate our national sovereignty and we do not need any ground troops to fight Daesh," al-Moallem said, using the Arabic acronym for the extremist group. "The Syrian Arab government is fully capable of fighting Daesh valiantly and we don't need any other troops."

Jordan is a member of a U.S.-led coalition fighting the Islamic State group in Syria. The Syrian government describes the airstrike campaign as illegitimate because it has not been co-ordinated with the Syrian government.

Syrian government forces are fighting Islamic State group militants on the ground but have lost about a third of the country to the extremist group.

Government troops are also battling opposition fighters from an array of rebel groups fighting to oust Syrian President Bashar Assad.

Al-Moallem said Syria offered to co-ordinate with the Jordanian government in fighting terrorism, but received no response.

He accused Jordan of allowing "terrorists" -- a government term for all opposition fighters seeking to topple Assad -- to cross into Syria after training them in camps in Jordan overseen by the United States. The CIA has said it is running a rebel training program in Jordan.

Al-Moallem claimed that Jordan, "which fights the Islamic State group along with the international coalition, doesn't fight" against Syria's main al-Qaida branch, called the Nusra Front, along its borders.

The Nusra Front is fighting with Syrian rebel groups in southern Syria, near the border with Jordan.