Israel arrested two alleged Jewish extremists without trial, a controversial form of detention, on Sunday after demands for a crackdown following the deadly firebombing of a Palestinian home that claimed the life of a toddler and his father, the defence ministry said.
"Meir Ettinger and Eviatar Slonim, who were arrested in recent days, have been placed in administrative detention for six months with the possibility of extension," a defence ministry spokesperson told AFP.
A third alleged Jewish extremist, Mordechai Mayer, had already been placed in administrative detention, a measure usually reserved for Palestinians.
The Israeli police also made several arrests in the wake of raids linked to the firebombing in the West Bank that killed an 18-month-old child and his father, police said.
The suspects were arrested by police in wildcat Jewish settlement outposts in the occupied West Bank as part of "the investigation into the events that occurred in Duma", where the July 31 arson attack took place, police said in a statement.
It did not, however, give the total number of arrests.
Israel has pledged to crack down on Jewish extremists in the wake of the firebombing as well as a July 30 stabbing attack at a Jerusalem Gay Pride march that killed a 16-year-old girl and wounded five other people.
The father in the firebombing died of his wounds on Saturday and relatives at his funeral accused Israeli authorities of failing to address violence by hardline settlers. The attack also critically wounded the toddler's mother and four-year-old brother.