Camila Domonoske

Updated at 8:05 p.m. ET

One police officer is dead and two seriously wounded after a shooting on Paris' famous Champs Elysees, in an incident that left one attacker dead. The assailant reportedly targeted a police vehicle. Authorities say a bystander was also wounded.

French prosecutor Francois Molins said the authorities have identified the shooter and are assessing whether the attacker had accomplices. Raids and searches were ongoing, Molins said.

Updated at 6:00 p.m. ET

General Motors has stopped operations in Venezuela after its only plant there was illegally seized by authorities, the automaker says in a statement. The details are murky: Multiple employees at the plant tell NPR that they believe auto dealers, not government officials, were responsible for the takeover.

The seizure happened Wednesday, as the "mother of all protests" brought hundreds of thousands of people into the streets to demonstrate against socialist President Nicolas Maduro.

This Tax Day, former Microsoft CEO Steve Ballmer launched a new tool designed to make government spending and revenue more accessible to the average citizen.

The website — USAFacts.org — has been slow and buggy for users on Tuesday, apparently due to the level of traffic. It offers interactive graphics showing data on revenue, spending, demographics and program missions.

Vice President Pence, visiting Japan on his 10-day tour of Asia, said the U.S. has launched bilateral talks with Tokyo in the hopes of reaching a new trade agreement.

It was Pence's second stop on the trip, which will later take him to Australia and Indonesia. He previously visited South Korea, where he emphasized the Trump administration's "resolve" on the North Korean nuclear threat, a theme he revisited in Japan as well.

Trade was also a major topic of conversation.

Two Kenyan runners, both of them making their Boston Marathon debut, have won the prestigious race.

Edna Kiplagat, a Kenyan policewoman and two-time world champion marathoner, finished first in the women's race with a time of 2:21:52. Rose Chelimo, a Kenyan-born Bahraini runner, placed second.

Geoffrey Kirui, also of Kenya, won the mens' race at 2:09:37 — his first-ever marathon victory. He edged out Portland runner Galen Rupp by 21 seconds.

It was a big day for debut runners at Boston, according to Runner's World.

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