Khloé Kardashian was allegedly ''ambushed'' by soon-to-be ex-husband Lamar Odom in Los Angeles this morning (12.08.15).

The 'Keeping Up with the Kardashians' star, who is waiting for a judge to officially finalise her divorce after signing and filing court documents last month following her split from the professional basketball player in December 2013, reportedly ''freaked out'' after he suddenly appeared and verbally attacked her in a parking lot as she arrived for a SoulCycle class at 6.45am in Beverly Hills.

The 35-year-old athlete, who was dumped by the 30-year-old beauty after four years of marriage amid allegations he was addicted to drugs and cheating on her, is said to have demanded she speak to him before he started shouting at her, according to gossip website TMZ.com.

An eyewitness claims the reality TV star initially attempted to ignore him, but screamed: ''Get off of me, get off of me. Stop. Stop,'' after the former LA Lakers star grabbed her arm.

When another onlooker asked Khloé whether she wanted them to call the police, Lamar then shouted: ''You're not going to call the cops on Lamar Odom.''

The blonde beauty is said to have been left visibly shaken by the incident and asked Lamar how he knew where she was at the time, but he failed to respond.

Khloé, who recently started dating NBA star James Harden, 25, and went public with their romance at her half-sister Kylie Jenner's 18th birthday party last weekend, then left the scene in her car.