Up to 15 Hamas operatives were arrested in an overnight raid in the West Bank, the Israeli military said on Sunday.
The military claimed that those captured are suspected of collaborating with a well-known Hamas operative from Gaza with the aim of expanding activities into the West Bank.
The West Bank is governed by Hamas' rival Fatah movement.
The overnight raid comes after Hamas accused Israel of assassinating a member in Malaysia on Saturday.
Malaysian authorities said Fadi al-Batsh, 35, was killed by two suspects believed to have ties with a foreign intelligence agency, in a drive-by shooting in Kuala Lumpur on his way to dawn prayers.
Hamas said the slain Palestinian lecturer was an important member of the organisation, and Israel of being behind the brazen killing and vowing revenge.
The past few weeks have seen mass protests along the Gaza border which have turned deadly.
At least 38 unarmed Palestinian protesters have been shot dead by Israeli forces since March 30, with hundreds more injured from live fire.
Around 1,600 protesters were wounded by gunfire or needed treatment for tear gas inhalation in the three weeks of protests.
Protests have centered on the right of Palestinian refugees to return to their homes, after they were expelled following the 1948 creation of Israel.
This article has been adapted from its original source.
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