The killings appeared to mark an expansion of a war between the Sinaloa cartel , led by the reputed drug lord Joaquin -LRB- El Chapo -RRB- Guzman Loera in alliance with Ismael -LRB- El Mayo -RRB- Zambada and Mexico 's Gulf and Tijuana drug cartels .
Mexico /location/location/contains Sinaloa
Sinaloa /location/administrative_division/country Mexico
Mexico /location/country/administrative_divisions Sinaloa
Mexico /location/location/contains Tijuana
DT NNS VBD TO VB DT NN IN DT NN IN DT NNP NN , VBN IN DT VBN NN NN NNP -LRB- NNP NNP -RRB- NNP NNP IN NN IN NNP -LRB- NNP NNP -RRB- NNP CC NNP POS NNP CC NNP NN NNS .
Mexico
LOCATION
Sinaloa
LOCATION
/location/location/contains
Sinaloa
LOCATION
Mexico
LOCATION
/location/administrative_division/country
Mexico
LOCATION
Sinaloa
LOCATION
/location/country/administrative_divisions
Mexico
LOCATION
Tijuana
LOCATION
/location/location/contains