Simplify the following text for a Grade 6 native English-speaking person.
Original: In 2006 , Firestone announced renewed efforts to recall tires of the same model recalled in 2000 after the tires were linked to recent deaths and injuries .
Simplified: In 2006 , Firestone announced a new effort to recall the same tires recalled in 2000 . More of the tires had been linked to recent deaths and injuries .