By Erin Banco and Gram Slattery

April 28 - U.S. intelligence agencies are studying how Iran would respond if President Donald Trump were to declare a unilateral victory in the two-month-old war that has killed thousands and become a political liability for the White House, two U.S. officials and a person familiar with the matter said.

April 28 (Reuters) - An Israeli strike on Lebanese troops and rescuers during a rescue operation in the village of Majdal Zoun in southern Lebanon wounded two Lebanese soldiers, the Lebanese army said on Tuesday.

The Lebanese civil defense said three of its members were trapped under rubble after the Israeli attack, adding that efforts were underway with the Lebanese army to evacuate them.

The Israeli military did not immediately respond to a request for comment.

By Jason Lange

WASHINGTON, April 28 (Reuters) - President Donald Trump's approval rating fell to the lowest level of his current term, as Americans increasingly souredon his handling of the cost of living and an unpopular war with Iran, according to a new Reuters/Ipsos poll.

The four-day poll completed on Monday showed 34% of Americans approve of Trump's performance in the White House, down from 36% in a prior Reuters/Ipsos survey, which was conducted from April 15 to 20.

LONDON, April 28 (Reuters) - The United Arab Emirates, one of OPEC+'s largest producers, will leave the oil producers' alliance on May 1, it said on Tuesday.

The Organization of the Petroleum Exporting Countries and allies, including Russia, are known collectively as OPEC+. Last year, the group produced nearly 50% of the world's oil and oil liquids, according to International Energy Agency estimates. The UAE is the fourth largest producer in OPEC+.

Below are facts about OPEC+ and its role.

WHAT ARE OPEC AND OPEC+?

LONDON, April 28 (Reuters) - Britain said on Tuesday the Iranian ambassador to London had been summoned over what the government described as the Iranian embassy's "unacceptable and inflammatory" comments on social media.

Britain's minister for the Middle East, Hamish Falconer, made clear that the embassy "must cease any form of communications that could be interpreted as encouraging violence in the UK or internationally", the Foreign Office said in a statement.

Iranian officials in Tehran could not be immediately reached for comment on Britain's move.

By Leila Miller

BUENOS AIRES, April 28 (Reuters) - Argentine President Javier Milei, a libertarian who has long cited former British Prime Minister Margaret Thatcher as one of his political role models, has recently sharpened his public tone on the Falkland Islands, a contrast from the moderate approach he has previously adopted as he's sought closer ties with the West.

A pirate attack off Somalia is the work of a new group of "opportunistic criminals", security officials said on Tuesday, complicating a threat that costs the shipping industry billions of dollars.

Piracy was rampant off the coast of Somalia in the 2000s, peaking in 2011 with hundreds of attacks, but was significantly reduced by international naval deployments and new tactics by commercial shipping.

Yet the past week has seen oil tanker HONOUR 25 and cement carrier SWARD hijacked in the first major incidents in months.

ANKARA, April 28 (Reuters) - Turkey's pro-Kurdish DEM Party issued one of its strongest criticisms yet of the government's handling of a fragile peace process, highlighting on Tuesday a growing stand-offbetween Ankara and Kurdish militants over next steps to end a decades-long conflict.

DEM is parliament's third biggest party and helped facilitate steps toward peace between the Turkish state and the Kurdistan Workers' Party (PKK), whose conflict has killed more than 40,000 people since 1984.

By Samia Nakhoul, Parisa Hafezi and Asif Shahzad

DUBAI, April 28 (Reuters) - Two months into a war with the U.S. and Israel, Iran no longer has a single, undisputed clerical arbiter at the pinnacle of power — an abrupt break with the past that may be hardening Tehran’s stance as it weighs renewed talks with Washington.

By Daniel Flynn

KYIV, April 28 (Reuters) - President Volodymyr Zelenskiy has leveraged Ukraine's expertise in drone warfare into a series of successful diplomatic deals during visits to the Middle East and Europe, showcasing how Kyiv is using military prowess to boost its diplomatic clout.

This month alone, Ukraine has signed defence and drone deals in Germany, Norway and the Netherlands, following long-term security partnerships with Saudi Arabia, Qatar and the United Arab Emirates in late March.