The fighters of the Islamic State of Iraq and the Levant group were wearing Kurdish and Free Syrian Army uniforms, the sources said, as they attacked the battleground town from three sides on Thursday morning.
ISIL fighters took several positions inside the town, while a number of them blew themselves up using explosives belts.
Al Jazeera's Nisreen El Shamayleh, reporting from Amman, said several ISIL fighters "carried out suicide attacks, decimated themselves and caused casualties" after entering the city.
"Dozens of people have been trying to flee," our correspondent said.
Fighting is said to be ongoing, as the Kurdish group YPG asked civilians to stay home as it sent reinforcements to the town.
More on The Bloom Gist: Buhari needs our support to deliver on his mandate - Atiku Abubakar
"Daesh [ISIL] took most of the places it wanted in Syria and Iraq but could not capture Kobane," Muslim told Al Jazeera at the time. |
Kurdish forces in January had reclaimed Kobane from ISIL in a victory touted by Anwar Muslim, the prime minister of the self-declared Kurdish canton of Kobane, as "the beginning of the end for Daesh [ISIL]".
Syrian state television also reported that the ISIL fighters entered Kobane from Turkey.
Losing Kobane after more than four months of intense fighting was seen as a significant propaganda blow to ISIL after it had invested extensive military resources to capture the isolated town on the border with Turkey.
Source: Aljazeera