Complex sentence: On the third quarter of 2001, services to San Diego via Mexicalli and to Zacatecas via Puerto Vallarta and Monterrey were launched, nevertheless, services were discontinued shortly after 9/11 Attacks.
Split into simpler sentences: On the third quarter of 2001, services to San Diego via Mexicali, to Zacatecas via Puerto Vallarta, and Monterrey were launched. Nevertheless, these services were discontinued shortly after 9/11 Attacks.