Two Palestinians died overnight during Israel's hunt for three Israeli teenagers thought kidnapped in the West Bank.
Israeli troops have heightened a crackdown on the Islamist group Hamas, which it blames for the disappearance of the Israeli boys.
Israeli soldiers carrying out raids in the city of Nablus fired at stone-throwing Palestinians, killing Ahmad Famawi, 26, residents and medics said.
A Palestinian hospital official said another man was killed by live fire in the city of Ramallah.
Israel has said its West Bank operation is twofold - to find Gil-Ad Shaer and US-Israeli national Naftali Fraenkel, both aged 16, and Eyal Yifrah, 19, who went missing near an Israeli settlement on June 13, and to deal a substantial blow to Hamas.
More top news
There is no evidence the Westminster attacker Khalid Masood was associated with so-called Islamic State or al Qaeda, the Met Police said.
Janet Ajao said in a statement: "I do not condone his actions nor support the beliefs he held that led to him committing this atrocity."
After the PM triggers Article 50, Britain will need the other EU nations to agree to deals. Gibraltar could be key to Spain's demands.