Locking over a DB link

I was wondering if it was possible for SQL similar to the following to cause a lock to be created on the remote database:

insert into localtable
(select columns from remotetable_at_dblink where <some condition>);

My first reaction was no, but I thought I remembered locking oddities over links being discussed before. So far I haven't found anything useful in my searches though.

-- 
Jason Heinrich

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http://www.freelists.org/webpage/oracle-l