Oil prices are dropping further, and stocks are rallying worldwide Tuesday on hopes that Israel's war with Iran will not damage the global flow of crude, even if a tentative truce seemed to fray under fire in the morning.

The S&P 500 was 0.7% higher in early trading, following up on even bigger gains for stocks across Europe and Asia, after President Donald Trump said late Monday that Israel and Iran had agreed to a "complete and total ceasefire." The Dow Jones Industrial Average was up 289 points, or 0.7%, as of 9:31 a.m. Eastern time, and the Nasdaq composite was 0.9% higher.

Russian drones, missiles and artillery killed at least 18 civilians and injured more than 100 others in Ukraine, officials said Tuesday, as Ukrainian President Volodymyr Zelenskyy sought guarantees of further Western military aid for his country's efforts to repel Russia's invasion.

Russian forces have relentlessly blasted civilian areas of Ukraine throughout the war, which is now in its fourth year. More than 12,000 Ukrainian civilians have been killed, according to the United Nations. Ukraine has also launched long-range drones against Russia, hitting residential areas.

Israel warned its public to take shelter after detecting missile launches from Iran early Tuesday. The launches came after 4 a.m. local time in Tehran, the time Iranian Foreign Minister Abbas Araghchi said Iran would stop its attacks if Israel ended their airstrikes.

U.S. President Donald Trump said on social media Monday that Israel and Iran have agreed to a "complete and total ceasefire" to be phased in over 24 hours. It is unclear yet how the latest developments will impact possible ceasefire agreements.

U.S. President Donald Trump said on social media that Israel and Iran have agreed to a “complete and total ceasefire” to be phased in over 24 hours.

Trump said on Truth Social that the ceasefire would bring an “Official END” to war, a major change in the hostilities that follows a U.S. strike over the weekend on three Iranian nuclear sites.

President Donald Trump on Monday called for the U.S. and other oil-producing economies to pump more oil as crude prices remain volatile following U.S. strikes on Iranian nuclear facilities.

Trump urged stepped-up production as the White House sharpened its warnings to Iran against closing the Strait of Hormuz, a vital oil and gas shipping lane, in retaliation for the U.S. strikes on Iran's nuclear program.

For visitors to Athens, the ancient Odeon of Herod Atticus is the must-see theater at the foot of the Acropolis. Artists revere it for the majestic stage where legends have performed. And for the Greek capital's residents it is the touchstone of their summer cultural calendar.

The Odeon of Herod Atticus recently opened the 70th season of the annual Athens Epidaurus Festival, a cherished annual tradition for many Greeks. But this edition marks the last before the theater that's more than 18 centuries old shuts down for maintenance and restoration work that is expected to last at least three years.

Kylian Mbappe will likely return Thursday against Salzburg after being sidelined from Real Madrid's first two Club World Cup games, according to coach Xabi Alonso.

Alonso told The Associated Press, after the team's 3-1 win over Pachuca on Sunday, that he is "looking forward to have him back. We need to go day by day."

Mexico tied Costa Rica 0-0 on Sunday night to win Group A of the CONCACAF Gold Cup and will play Saudi Arabia in the quarterfinals.

Mexico's Santiago Giménez appeared to score on a bicycle kick in the fourth minute of second-half stoppage time but the goal was disallowed by Guatemalan referee Mario Escobar following a video review.

The first heat wave of the year is hitting many parts of Western Europe, especially in the U.K. and France, where officials have issued health warnings.

People are covering up, using hand-held fans and seeking shade, or going for dips in the ocean and in fountains.

Tens of millions of people across the Midwest and East endured dangerously hot temperatures again on Sunday as a sprawling June heat wave that gripped much of the U.S. was expected to last well into this week.

Most of the northeastern quadrant of the country from Minnesota to Maine was under some type of heat advisory. So were parts of Arkansas, Tennessee, Louisiana and Mississippi, the National Weather Service said.