Utilize the input text as a context reference, choose the right relationship between Afren and LONDON from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

LONDON (ShareCast) - (ShareCast News) - Embattled oil explorer Afren (LSE: AFR.L - news ) suspended its shares amidst uncertainty over its financial position, though analysts were sceptical about the real reasons for the move.

Answer: headquarters_location