The town in the northeastern province of Hasaka is controlled by the Kurdish YPG militia, which has been battling Islamic State with the support of US led air strikes.

Kurdish fighters have advanced against the militants in the last few weeks in Hasaka, notably taking over the town of al Houl backed up by a US backed rebel alliance that includes the YPG.

The three blasts, carried out by at least two suicide bombers, struck outside a hospital, at a marketplace and in a residential area in the town of Tel Tamer late on Thursday, the YPG's Redur Xelil said via an internet messaging service.

Earlier the Britain-based Syrian Observatory for Human Rights gave a death toll of at least 22 people in the attack, saying that number was likely to increase.

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