The Intelligence has received reports of the death of five persons hailing from northern Kerala while fighting for Islamic State in Syria in the last four months.

However, the news cannot be authenticated as the information was first received by the victims' family. "Such news is not authenticated, it is only information. But the reports could be true as they were received by family circles," PTI quoted a senior officer in the Intelligence wing as saying.

The official said relatives of one Sibi from Kanjikode in Palakkad district, had received the news of his death a few days ago. Sibi was working in Bahrain before joining the ISIS in Syria. 

Similar is the case of one Muhadis, reportedly killed in Aleppo in Syria in military operations. Muhadis's brother who works in Bahrain broke the news of his death to family members at Vaniyambalam in Malappuram district when he came home about a month ago, the officer said. 

The third person is Abu Tahir from Palakkad, who was reportedly killed in US military strikes in Syria in April. 

The Intelligence official, however, did not give details of the other two persons reportedly killed in Syria. With this the number of Keralites killed in the ISIS stronghold has risen to nine.

The official said the earlier deaths of four others from Kasaragod and Kozhikode districts at Nangahar in Afghanistan have been confirmed. "But it will be difficult for us to confirm the present deaths of five persons reportedly killed in Syria," he pointed out.