Fukushima II, with 4 reactors, is 7 miles south of Fukushima I (Daiichi complex), it is referred to as the Daini complex in my posts and by NHKJapan.
Reactors 1 and 3 built by Toshiba, 2 and 4 by Hitachi.
Smoke being emitted from one of the buildings was from equipment which supplies power to a motor pump which collects outdoor water, and stopped after workers turned off the motor, according to NHK.

The Japanese government has set up 4 working groups led by Government members Fukuyama and Hosono.
The groups include members of Japan's Nuclear and Industrial Safety Agency, U. S. military forces stationed in Japan, and the U. S. Nuclear Regulatory Commission.
The groups are discussing measures to prevent radiation from leaking outside the Daiichi plant, and also are studying the possible use of remote-controlled unmanned equipment to prevent radiation exposure among plant workers, and use of a U. S. unmanned robot for measuring radiation levels.
They have arranged for the transport of fresh water to the complex by U. S. vessels.
NHK, March 30.