howto delete using a join ?

Hi,

is there a way to delete from a table using information from another
table to decide if a row should be dropped?

In my case there is a log
events ( event_id, event_type_fk, ...);
event_types ( event_type_id, relevance_level );

Now I'd like to delete all old events with certain relevance_levels but
not all!

This works:
delete from events where event_id in
(
select event_id from events join event_types on event_type_id =
event_type_fk
where relevance_level in ( 1, 3, 5, 7) and create_ts < '2010/01/01'
);

The following doesn't work but is there a more direct way which doesn't
involve a subselect?

delete from events join event_types on event_type_id = event_type_fk
where relevance_level in ( 1, 3, 5, 7);