The announcement was made on Twitter via the Immigration Department account. See tweet below;
— Immigration Kenya (@ImmigrationDept) June 24, 2015
Visitors anticipating to travel to Kenya will need to log on the e-citizen website and register as a visitor. Once logged in , click on the Department of Immigration button and submit application after which the applicant can select visa type and pay for the visa application fee using Visa Card, MasterCard or any other debit card.
The e-visa portal will become operational by 1st of July, 2015.