Kansas City officer killed:

KANSAS CITY, Kan. — A Kansas City, Kansas, police officer was shot and killed on Tuesday while searching for a suspect in a drive-by shooting, police said. Capt. Robert Melton was searching for the suspect when he drove up to someone who matched that person’s description just before 2 p.m., police spokesman Tom Tomasic said. Before Melton could get out of his vehicle, the person opened fire, hitting the officer multiple times, Tomasic said. The accused shooter was caught five minutes later about a block away, he said. A police spokeswoman said the suspect was being questioned Tuesday evening along with another person suspected in the initial drive-byshooting.

Crane topples near NYC:

NEW YORK — A huge crane toppled off the new Tappan Zee Bridge under construction and collapsed across the busy span it is replacing, bringing cars to a halt midday Tuesday on the key Hudson River crossing north of New York City. “Miraculously, there were no serious injuries,” said Democratic Gov. Andrew Cuomo. “If you said to me that a boom could fall across the Tappan Zee Bridge at noon, not hit a car ... I would not believe it.” Cuomo said it was unclear what caused the crane’s boom to fall.

Accusations mar moment:

CLEVELAND — This was to have been Melania Trump’s moment, her first real introduction to American voters who’d seen her by her husband’s side for months but had barely heard her speak. But within moments of Mrs. Trump’s triumphant appearance on the Republican National Convention stage, accusations of plagiarism surfaced, eclipsing her achievement. Trump’s advisers denied the charge Tuesday, though the word-for-word overlap was obvious between Mrs. Trump’s remarks the night before and two passages in Michelle Obama’s 2008 speech to the Democratic convention in Denver. How that had come about remained unclear.

Teen vowed revenge:

WUERZBURG, Germany — A 17-year-old Afghan asylum-seeker vowing “revenge on these infidels” went on an ax-and-knife rampage on a train in southern Germany, wounding five people before being shot and killed by police — an attack that German authorities conceded Tuesday was almost impossible to prevent. German officials didn’t identify the attacker or the victims, but Hong Kong’s immigration department said among those wounded were four members of a family of five from the southern Chinese city. At least one member of the Chinese family and another woman attacked outside the train were in life-threatening condition, according to Bamberg prosecutor Erik Ohlenschlager. The Islamic State group claimed responsibility for the train attack.

Olympics tickets cheaper:

RIO DE JANEIRO — Sports fans living outside Brazil who bought tickets for the Rio de Janeiro Olympics early may be regretting it, having paid higher prices and add-on fees. In a late push to boost slow ticket sales ahead of the Aug. 5-21 games, Rio organizers have opened up their local ticket website to the rest of the world. This means that fans outside Brazil can now buy tickets at local rates in Brazilian reals. The result is ticket prices that could be much lower due to fluctuations in exchange rates between the real and other currencies, and the absence of so-called service fees charged by official ticket resellers outside Brazil.

Airstrikes kill dozens:

BEIRUT — Airstrikes on Islamic State-held villages in northern Syria killed at least 56 civilians on Tuesday as intense fighting was underway between the militants and U.S.-backed fighters, Syrian opposition activists and the extremist group said. Residents in the area blamed the U.S.-led coalition for the strikes that targeted two villages, Tokhar and Hoshariyeh, which are controlled by IS, activists said. The villages are near the IS stronghold of Manbij, a town that members of the predominantly Kurdish U.S.-backed Syria Democratic Forces have been trying to capture in a weekslong offensive. The death toll from the airstrikes, which coincided with a wide ground offensive by the extremists against SDF fighters, ranged between 56 and 200. If it is confirmed that 200 people were killed, it would be the deadliest strike by the U.S.-led coalition since it began its military campaign against IS in Syria almost two years ago.