Palestinian Prime Minister Rami Hamdallah, center, inspects a house after it was torched in a suspected attack by Jewish settlers killing an 18-month-old Palestinian child at Duma village near the West Bank city of Nablus (AP)

A mourner reacts next to the body of 18-month-old Palestinian baby Ali Dawabsheh, who was killed after his family's house was set to fire in a suspected attack by Jewish extremists in Duma village near the West Bank city of Nablus (Reuters)

Mourners carry the body of 18-month-old Palestinian baby Ali Dawabsheh, who was killed after his family's house was set to fire in a suspected attack by Jewish extremists in Duma village near the West Bank city of Nablus (Reuters)

Mourners carry the body of 18-month-old Palestinian baby Ali Dawabsheh, who was killed after his family's house was set to fire in a suspected attack by Jewish extremists in Duma village near the West Bank city of Nablus (Reuters)

Mourners carry the body of 18-month-old Palestinian baby Ali Dawabsheh, who was killed after his family's house was set to fire in a suspected attack by Jewish extremists in Duma village near the West Bank city of Nablus (Reuters)

Mourners carry the body of 18-month-old Palestinian baby Ali Dawabsheh, who was killed after his family's house was set to fire in a suspected attack by Jewish extremists in Duma village near the West Bank city of Nablus (Reuters)

Mourners carry the body of 18-month-old Palestinian baby Ali Dawabsheh, who was killed after his family's house was set to fire in a suspected attack by Jewish extremists in Duma village near the West Bank city of Nablus (Reuters)

Mourners carry the body of 18-month-old Palestinian baby Ali Dawabsheh, who was killed after his family's house was set to fire in a suspected attack by Jewish extremists in Duma village near the West Bank city of Nablus (Reuters)

Mourners carry the body of 18-month-old Palestinian baby Ali Dawabsheh, who was killed after his family's house was set to fire in a suspected attack by Jewish extremists in Duma village near the West Bank city of Nablus (Reuters)