Syrian state media reported that four US helicopters entered Syrian airspace around 4:45 p.m. Sunday and struck a construction site in the al-Boukamal region.
An unnamed US military official quoted by the Associated Press (AP) confirmed the attack, saying the US was trying to shut down "rat lines" sending Al Qaeda-linked insurgents and other foreign fighters into Iraq from Syria.
The raid appears to be straining already tense US-Syrian relations, even as Syria has reached out to the Iraqi government and Lebanon, entered into indirect talks with Israel, and held talks with the European Union.
SANA, the Syrian Arab News Agency, quoting an unnamed "official media source," said the helicopters attacked a civilian site about five miles inside Syria, "leading to the martyrdom of eight citizens," including the building guard and his wife.
Citing an "official source," SANA said the Syrian government had summoned the top American diplomat in Damascus to condemn and complain about the "dangerous aggression." The Iraq chargé d'affaires was also summoned, the report said.
Agence France-Presse quoted a commentary in the Syrian government newspaper Tishrin Monday: "The American forces from Iraq committed cold-blooded murder.... They committed a war crime in killing eight Syrian civilians in a quiet village."
AP reported Monday that clergy were preparing the dead for burial as angry Syrian villagers chanted, "May God's wrath fall on them." The report quoted Jumaa Ahmad al-Hamad – a nephew of one of the dead – who saw the helicopters open fire on the building.
The New York Times reported Monday that Iraqi police in Anbar Province, which borders Syria, "did not indicate on which side of the border the blast had taken place," raising some question about the details of the incident. It also noted that Iran joined Syria in lashing out at the Americans, according to AP, calling the apparent attack a "violation of the territorial integrity" of Syria.
AP cited an unnamed US military official as saying the raid targeted "elements of a robust foreign fighter logistics network." The official said the US had taken action because Syria has not stopped the flow of foreign fighters across the border into Iraq.
The Guardian reported that while Syria-US relations remain prickly, Damascus has been taking a more moderate tack in its ties with Lebanon, Israel, and the EU.
Josh Landis, codirector of the Center for Middle East Studies University of Oklahoma, wrote on his blog Syria Comment that with the raid, the Bush administration may have been giving Syria a parting shot for its unwillingness to comply with intelligence-sharing and other US demands.