NEW YORK (CNN/Money) - IBM Wednesday laid off some workers in its research division, but the company declined to say specifically how many jobs were cut.

The cuts are the latest in a series of layoffs throughout the company over the past several weeks and affect employees at the company's research facilities in San Jose, Calif., and Yorktown Heights, N.Y., according to Timothy Blair, an IBM Research spokesman.

Blair said the cuts were made as part of a company-wide reorganization, which includes a shift in product focus at the company's microelectronics division as well as a thinning down of some product areas.

However, he declined to say specifically how many jobs were cut. "We still have over 3,000 people in our global organization," Blair said.

Citing people familiar with the situation, the Wall Street Journal in its interactive edition reported late Wednesday that 160 IBM Research employees had been laid off.

Wednesday's cuts are the latest in a series of layoffs across the company over the past several weeks. The company's server and information technology services units have been especially hard hit.

The latest cuts bring the total number of layoffs among IBM's (IBM: Research, Estimates) U.S.-based employees to more than 7,000, although the company has not provided an official tally.

Earlier this month, IBM said the job cuts and other recent restructuring actions will result in a charge of $2 billion to $2.5 billion, most of that to be taken in the second quarter.