Three SDF fighters had been killed and 10 wounded, Mustafa Bali, head of the SDF media office, said in a post on Twitter.
Islamic State fighters attempted four suicide attacks but the SDF captured an arms dump, said Mustafa Bali, head of the SDF media office.
Mustafa Bali, head of the SDF media office, said no further civilians had emerged from the enclave at the Iraqi border since Saturday and the SDF had not observed any more civilians in the area, prompting the decision to attack.
However, the head of the SDF media centre, Mustafa Bali, said no more people had emerged on Friday.
“We are still hearing about the presence of thousands inside Baghouz,” SDF spokesman Mustafa Bali told al-Hadath television.
Mustafa Bali tweeted that about 3 000 came out of the village of Baghouz in eastern Syria on Monday through a humanitarian corridor established by the Kurdish-led Syrian Democratic Forces for those who want to leave or surrender.
However, the head of the SDF media office, Mustafa Bali, said on Twitter early on Monday that some civilians were still there.
“We expect it to be over soon,” Mustafa Bali, a spokesman for the Syrian Democratic Forces (SDF) told Reuters.
DEIR AL-ZOR PROVINCE, Syria (Reuters) - The U.S.-backed Syrian Democratic Forces (SDF) expect a fierce battle with Islamic State militants who are still holed up in the group’s last enclave in eastern Syria, Mustafa Bali, the head of the SDF media office, told Reuters on Friday.
“It is expected that there are still undiscovered tunnels, even rooms underground,” said Mustafa Bali, an SDF spokesman.