insert ..... returning problem

Greetings!

I'm trying to insert a record returning column value using the following query:

   INSERT INTO t_load (load_id, load_type) VALUES (:id, :typ) returning load_idx INTO :idx

But when I try to prepare the query I'm getting the following error:

   PREPARE p1515544c00000001 AS insert into t_load (load_id, load_type) values ($1, $2) returning load_idx into $3]:
       ERROR:  syntax error at or near "into" LINE 1: ...ad_id, load_type) values ($1, $2) returning load_idx into $3
                                                                                                              ^
Why 'into var' is not accepted here?

Best regards,
-- 
 \   / |                       |
 (OvO) |  Mikhail Iwanow                   |
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