NU Online News Service, Nov. 26, 4:58 p.m. – John Hancock Financial Services Inc., Boston, says it hopes to sell its three main buildings in Boston, including the John Hancock Tower, over the next several weeks.

But Hancock emphasizes that it intends to lease back most of the space in the buildings that it now occupies for at least 10 years, and that it has no plans to move from its current, highly visible Back Bay headquarters.

Hancock already leases much of the space in its “Tower complex” to outside organizations.

Hancock says it is arranging the Tower complex sale because demand for well-known commercial buildings is strong right now and the company wants to use the proceeds to strengthen the company.

The buildings on the block are the tower at 200 Clarendon St., and buildings at 197 Clarendon St. and 200 Berkeley St. Together, the three buildings have about 3 million square feet of office space.