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Manufacturing activity in the New York region expanded in June at the slowest rate in seven months, the Federal Reserve Bank of New York said Friday.

Navistar International Corp. last week reported a $172 million loss in its second quarter, partly triggered by what its top executive said was “a lot of noise and speculation” about Environmental Protection Agency approval of its 13-liter engine, and reshuffled top management in a bid to restore profitability.

An index of the U.S. economy’s service sector improved in May, the Institute for Supply Management said Tuesday.

U.S. manufacturing activity slowed in May but showed continued expansion, the Institute for Supply Management said Friday.

Vehicle components maker Delphi Automotive said it has entered “exclusive negotiations” to purchase FCI Group’s Motorized Vehicles Division for 765 million euro (about $972 million).

Trailer manufacturer Wabash National Corp. said it has completed its previously announced acquisition of Walker Group Holdings.

Original equipment manufacturers Daimler AG and Cummins Inc. reported more success in North American truck markets during the year’s first quarter, compensating for problems in other parts of the world.

Wabash National Corp. reported a higher first-quarter profit as trailer shipments increased.

U.S. manufacturing activity accelerated in April, the Institute for Supply Management said Tuesday.