for reasons connected with sb/sth :
A man has been arrested in connection with the murder of the teenager.
I am writing to you in connection with your recent job application.
for reasons connected with sb/sth :
A man has been arrested in connection with the murder of the teenager.
I am writing to you in connection with your recent job application.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005