内容摘要：to unblock supplies of grain stuck in Ukraine’s Black Sea ports, ending a standoff that threatened global food security. The deal expires a year later.

to unblock supplies of grain stuck in Ukraine’s Black Sea ports, ending a standoff that threatened global food security. The deal expires a year later.

About a minute later, though, the controller warned Groff the plane was flying at a low altitude, the report states. The pilot never responded, and, despite multiple warnings, air traffic control received no further radio transmissions from the plane until radar contact was eventually lost.The Mitsubishi MU-2B-40 crashed in snow covered terrain roughly 10 miles (16 kilometers) south of the airport.

Investigators didn’t provide an exact cause of the crash in the preliminary report.But they noted that all major components of the aircraft found within a 150-foot debris field and that no significant weather advisories were in effect in the region at the time of the crash.NTSB officials have previously said overcast conditions may have impacted the pilot’s visibility and that an initial investigation had not turned up any issues with the aircraft.

CAMBRIDGE, Mass. (AP) — Transit police in Boston were investigating a shooting on a subway platform at Harvard University on Sunday that prompted the school to issue a shelter-in-place order for students and staff.Authorities temporarily rerouted passengers on part of the city’s subway system to shuttle buses as officers from various departments searched for a suspect.

Richard Sullivan, superintendent of the Massachusetts Bay Transit Authority Transit Police Department, said in an email that a man armed with a gun fired four to five rounds at a “targeted individual” on the southbound platform at the Harvard Square station, according to a preliminary investigation. The suspect then fled the station.

There is no evidence the targeted person or anyone else was injured, he said.KNOWLES: Some of them can be detrimental, and I go into detail about that because I realize that a teacher telling me that Beyoncé was slow in kindergarten and that she needs to repeat the grade and it’s December — that woman could have messed up my child’s life. We wouldn’t even have a Beyoncé today if I had listened to her.

You gotta fight for your kids. I hope that lesson came through loud and clear. … That was important to me because I see a lot of parents that don’t, and my mom didn’t protect me.Tina Knowles-- entrepreneur, fashion designer, philanthropist and mother of Beyoncé and Solange-- has released a book, ‘Matriarch: A Memoir,’ and says being chosen for Oprah’s Book Club is “a great way to start it off.” (April 22)

KNOWLES: By the time I finished the book and I was ready to share it with them, both of them were on these really crazy schedules and I just didn’t want them to feel, “Oh, I got to stop and go read a book.” So, I sent them all of their parts and they approved the parts.KNOWLES: No. They were in agreement with everything.